Shape memory effect and magnetic properties of Co-Fe ferromagnetic shape memory alloys
|
|
- Johnathan Pope
- 6 years ago
- Views:
Transcription
1 Shape memory effect and magnetic properties of Co-Fe ferromagnetic shape memory alloys Yunqing Ma*, Shuiyuan Yang, Yuxia Deng, Cuiping Wang, Xingjun Liu Department of Materials Science and Engineering, Xiamen University, Xiamen, 422 Siming South Road, Fujian rovince,. R. China ABSTRACT In 1996, after Ullakko et al. first reported a measurement of 0.2% strain along the [001] direction of a NiB2BMnGa single crystal when subjected to a magnetic field of 8KOe at 265K, the researches of ferromagnetic shape memory alloys became popular. The reversible strain induced by magnetic-field in NiB2BMnGa has been proved to be nearly 10% in a magnetic field of less than 1T, which is much higher than that of the rare-earth giant magnetostrictive alloys. But the high brittleness of NiB2BMnGa hinders its practical application. Therefore, the development of ferromagnetic shape memory alloys with good ductility is of primary importance. In this paper, the microstructure, martensitic transformation temperature, shape memory effect, as well as magnetic and mechanical properties of Co-Fe alloys were investigated by optical observation, X-ray diffraction, DSC, bending test and vibrating sample magnetometer. It was confirmed that the shape memory effect in Co-Fe alloys is associated with the fcc/hcp martensitic transformation. Moreover, Co-Fe alloys exhibit high saturation magnetization with the values of above 170 emu/g, which are much higher than that of NiB2BMnGa (66 emu/g). So the driving force under magnetic field will be large for Co-Fe alloys. Additionally, Co-Fe alloys possess good ductility for practical application with tensile elongation higher than 17.5%. All these results indicate that Co-Fe alloys are promising candidates for developing as ferromagnetic shape memory alloys. Keywords: Martensitic transformation, ferromagnetic shape memory alloy, Co-Fe alloy, ductility 1. INTRODUCTION Since the discovery of shape memory phenomenon, many kinds of shape memory alloys (SMAs) have been developed [1-2]. Until now, Ti-Ni-based alloys exhibit the best performance. Not only do they bear the shape memory effect (SME) and superelasticity similar with other SMAs, they also exhibit good mechanical properties (especially ductility), excellent corrosion and abrasion resistance etc. So most of the commercial applications of SMAs have been done for Ti- Ni-based alloys up to now, such as various sensors and actuators in automobile and oil industry and in safety devices, a flap in air-conditioner, coffee maker, antenna for mobile phones, medical applications such as orthodontics wire, guide wire and various stents etc [3]. The outstanding characters of SMAs are their superelasticity and large thermally recoverable strains and stresses that can be as large as 10% and 800 Ma, respectively. However, heating or especially cooling through a transformation temperature is not a satisfactorily fast method of actuation for many applications. There is a pressing need to increase the response speed, i.e. shorten the feedback time of SMA. In 1996, after Ullakko et al. first reported a measurement of 0.2% strain along the [001] direction of a NiB2BMnGa single crystal when subjected to a magnetic field of 8KOe at 265K [4], substantial efforts have been devoted to developing ferromagnetic shape memory alloys (FSMAs) as they open the possibilities of changing the shapes and dimensions of a SMA by an external magnetic field in addition to stress and temperature. Owing to the fact that their driving force is provided by the outside magnetic field, FSMAs exhibit much higher response speed than conventional SMAs, which are expected to greatly extend the potentials of SMAs. Such fascinating phenomenon can be achieved either by the magnetic-filed-induced reversible redistribution of martensitic variants or the magnetic-filed-induced martensitic transformation from the parent phase. Many FSMAs systems have been developed, including NiMnGa [5-7], Fed [8], Fet [9], CoNi(Al, Ga) [10,11], NiFeGa [12], NiMn(In, Sn, Sb) [13] etc. Until now, the reversible strain induced by magnetic field in FSMAs has been proved to be nearly 10% in a magnetic field of less than 1T [14], which is much *myq@xmu.edu.cnt;t phone ; fax International Conference on Smart Materials and Nanotechnology in Engineering edited by Shanyi Du, Jinsong Leng, Anand K. Asundi roc. of SIE Vol. 6423, 64233I, (2007) X/07/$18 doi: / roc. of SIE Vol I-1
2 the radiation. = [18], higher than that of the rare-earth giant magnetostrictive alloys. However, there are still some problems involved in the practical application of these FSMAs, where good ductility, high martensitic and magnetic transformation temperatures are required. Several Co-based alloys such as CoNi [15], CoAl [16], CoSi [17] etc. have been reported to exhibit SME rooted from the martensitic transformation between the γ phase with a face centered cubic (fcc) structure at high temperature and the ε phase with a hexagonal closepacked (hcp) structure at low temperature. One important property of these Co-based SMAs is their magnetisms with high Curie temperatures (TBcB), hence they are considered to be attractive candidates for FSMAs. Recently, the present authors have found that Co-Fe alloys also exhibit such SME, and possess good ductility and high saturation magnetization, which means that the driving force under magnetic field will be large. The intention of this paper is to report the microstructure, SME, magnetic and mechanical properties in polycrystalline Co-xFe (x=2-6 wt.%) alloys. 2. EXERIMENTAL Co-xFe (x=2-6 wt.%) binary alloy buttons were prepared by melting pure cobalt (99.9%) and iron (99.7%) under argon atmosphere using an arc melter. Each specimen of about 50g was remelted four times to ensure uniformity. To facilitate description, the composition of Co-Fe alloys will be denoted in weight percent hereafter in this paper. The specimens were hot-rolled to make thin plates of 1 mm thickness, and then solution-treated at 1200 for 1 h followed by quenching in water. The microstructure was observed by optical microscopy (OM) and the phase structure was identified at room temperature by a Regaku D/Max 2200 C x-ray diffractometer with Cu KBaB The martensitic transformation temperatures of the alloys were determined by the differential scanning calorimetry (DSC) (Netzsch STA 449) at the cooling and heating rates of 10 C/min, where the transformation temperatures are defined as a cross point of the base line and the tangent of the maximum or minimum inclination. The magnetic transition temperatures were measured by the modified thermogravimetry (TG) in the Netzsch STA 449 with a couple of small NdFeB magnets below the balance outside the chamber that monitors the changes of the sample s nominal weight near the magnetic transitions, which reflects the variations of the magnetic force. The magnetization curves were determined by a LDJ9600 vibrating sample magnetometer (VSM). The mechanical properties were measured by tensile tests at ambient temperature using a Galdabini Sun2500 machine at a crosshead speed of 0.2 mm/min. The tensile direction was parallel to the rolling direction. The size of the gauge part of 1/2 the tensile specimen was 3 mm wide, 1.0 mm thick, and 10 mm long according to the relationship of LB0B 5.65 A where A is the cross-sectional area and LB0B length of the gauge part. 3 The SME was evaluated by bending a sheet specimen with dimensions of mm into a round shape at room temperature (surface strain εbib), unloading it (surface strain εbcb) and then heating it (surface strain εbhb). The surface strain is defined as ε = t/(2r+t), where t and r are the specimen thickness and the radius of curvature, respectively. The recovered strain εbsmeb are evaluated by εbsmeb =εbcb-εbhb. 3. RESULTS AND DISCUSSION 3.1 Microstructure X-ray diffraction patterns of Co-xFe (x=2-6) alloys tested at room temperature are shown in Fig. 1. All the diffraction peaks could be indexed by two phases, i.e. γ phase with fcc structure and ε phase with hcp structure. The diffraction peak of γ(111) overlaps with ε(002), and the characteristic peaks of γ and ε phase are γ(200) and ε(211), respectively. Co-2Fe alloy exhibits mainly ε martensite with little residual γ phase, implying most of the parent phase have transformed to martensite, as shown in Fig. 1. When Fe content increased from 2 to 5.6, the intensities of the residual γ phase peaks increased gradually, implying the amount of ε martensite decrease gradually with the increase of Fe content. When Fe content is higher than 5.65 wt.%, all the reflection peaks can be indexed with γ phase, and no other phases could be roc. of SIE Vol I-2
3 are monitored. This means that the martensitic transformation start temperatures of Co-xFe alloys are lower than room temperature (25 ) when Fe content is higher than 5.65 wt.%. Fig. 2 shows the optical micrograph of Co-4Fe alloy quenched from 1200 in the γ single-phase region. A typical band microstructure of the ε martensite is observed. The white region around the band structure is the residual γ phase. The characters of the microstructure are similar with that of other Co-based alloys [16,17] and Fe-Mn-based alloys [19]. γ (111) ε(002) γ (200) γ (220) γ (311) γ (222) X=6 Intensity (A.U.) X=5.8 X=5.7 X=5.65 X=5.6 X=5.4 ε (210) ε (211) ε (212) ε (213) X=4 X= theta (deg) Fig. 1 X-ray diffraction patterns of Co-xFe (x=2-6) alloys quenched from 1200 Fig.2 Optical micrograph of Co-4Fe alloy quenched from Martensitic transformation & SME Heat flow (mw/mg) exo Heating Cooling Temperature ( O C) Fig. 4 Relationship between martensitic transformation Fig. 3 DSC curves of Co-2Fe alloy temperatures and Fe contents in Co-Fe alloys Fig. 3 shows the DSC curves of Co-2Fe alloy during heating and cooling. The clear endothermic peak appeared on the heating DSC curve is associated with the reverse martensitic transformation from martensite to cubic austenite, where the austenite transformation starting temperature ABsB, finishing temperature B ABf 359.4, and 378.6, respectively. The exothermic peak indicating the forward martensitic transformation from austenite to martensite occurs on the cooling M s temperature ( O C) O C 276 O C Ms ( O C) = X (wt.% Fe) Fe content (wt.%) Ms temperature 25 O C roc. of SIE Vol I-3
4 are DSC curve, and the martensite starting temperature MBsB, finishing temperature MBfB and 236.4, respectively. In the same way, the transformation temperatures were determined for other Co-xFe (x=2-6) alloys. However, no peaks could be detected on the cooling and heating curves of Co-Fe alloys with high Fe content. This may due to two facts: (1) the amount of the martensite decreased with the increasement of Fe content, as indicated in the previous part. (2) The γ/ε martensitic transformation is one of the simplest transformations crystallographically, since both the fcc and hcp phases have closed-packed structures and the martensitic transformation is achieved by shearing along <112>BγB on every other {111}BγB plane [16]. So the latent heat associated with the phase transformation will be small, which may be beyond the sensitivity of the DSC equipment. More studies should be conducted on this item. However, we can estimate the martensitic transformation temperatures using the known data. The martensitic transformation starting temperature of pure Co is 417. The martensitic transformation starting temperature of Co-2Fe is 276.6, and the martensitic transformation starting temperature of Co-5.6Fe is 25, as indicated from the measurement of X-ray diffraction. From these data, the relationship between the martensitic transformation temperatures and the Fe content is estimated and plotted in Fig.4. The martensitic transformation temperatures are almost linearly decreased with increasing Fe content. MBsB ( ) = (wt.% Fe) 1, as Shape recovery (OMS%) 0,2 - OO J!I!I!F! I l Temperature ( C) Fig. 5 Shape recovery of Co-4Fe alloy gradually heated from room temperature to 600 The SME of Co-4Fe alloy was illustrated in Fig. 5. After a surface strain of 1.47% was initially conducted by bending at room temperature, the specimen was heated to 600 to investigate the change of temperature-dependent surface strain. The surface strain was measured at each heating step, and the heating temperature being increased from 100 to 600 at intervals of 100. The shape recovery of Co-4Fe alloy occurs slightly by heating up to 200, then drastically changes in the temperature range from 200 to 300, which corresponding to the reverse martensitic transformation. The total recoverable strain, 0.86%, is lower than that of CoAl alloys (1.1%) [16], but higher than that of CoSi alloys (0.34%) [17]. It was well known that good SME appeared in alloys with thermoelastic martensitic transformation, and highly reversible crystallogphy. The phase transformation between disordered fcc and hcp in Co-based alloys belongs to the non-thermoelastic martensitic transformation and the recoverable strain are caused by the movement of stacking fault. It is understandable for Co-Fe alloys exhibit inferior SME to NiTi alloys, considering the return path of the basal planes during the transition from ε to γ has a multiplicity [20]. In other words, the mechanism of SME in Co-based alloys is similar to that of Fe-Mn-Si alloys, which is also a disordered structure with non-thermoelastic martensite transformation. Since Fe-Mn-Si alloys exhibit good SME associated with stress-induced martensite after training [1], it is natural to roc. of SIE Vol I-4
5 temperatures for values of think good SME may be also obtained through the stress-induced martensitic transformation in Co-Fe alloys. Further investigations are necessary to demonstrate it. 3.3 Magnetic properties The magnetization curves of two as-quenched Co-Fe alloys measured at room temperature are presented in Fig. 6. One can see that the magnetization curves exhibit typical characteristics of ferromagnetic materials. It is noted that Co-5.3Fe trends to saturate easily due to the fact that it contains more γ phase with high symmetry, as compared with Co-4Fe. The saturation magnetization and magnetic anisotropy constant KB1B Co-4Fe at room temperature calculated from the law of approach as MBsB=171.3 emu/g and KB1B= erg/cm, respectively. These two values are emu/g and erg/cm Co-5.3Fe alloy. It can be seen the MBsB are much higher than that of NiB2BMnGa (66 emu/g) alloy [21], CoNi (124 emu/g) alloy [15] and CoAl (120 emu/g) alloy [22]. So the driving force under magnetic field will be large for Co-Fe alloys. The TBcB of Co-Fe alloys were determined to be 1085 for Co-4Fe and 1075 for Co-5.3Fe, as shown in Fig.7, suggesting a wider temperature range for Co-Fe alloys in practical application. The addition of the Fe seems to decrease the Curie temperatures of Co-based alloys. 200 Magnetization (emu/g) Co-4Fe Co-5.3Fe TG ( a.u. ) Co-4Fe Co-5.3Fe Tc = 1085 O C Tc = 1075 O C Magnetic Field (Oe) Temperature ( O C) Fig. 6 Magnetization curves of Co-Fe alloys Fig. 7 TG curves of Co-Fe alloy 3.4 Mechanical properties 400 Co-4Fe Stress (Ma) Co-5.3Fe Strain (%) Fig. 8 Stress-strain curves of Co-Fe alloys Fig. 9 SEM microscopy of the fracture surface of Co-5.3Fe alloy roc. of SIE Vol I-5
6 Fig. 8 shows the stress-strain curves of Co-4Fe and Co-5.3Fe alloys at room temperature. The symbol ( ) represents the fracture point. The tensile stress and the strain were measured to be 383Ma and 17.5% for Co-4Fe alloy, and 382Ma and 30.2% for Co-5.3Fe alloy, respectively. The yield strength (σb0.2b) was measured to be Ma for Co-4Fe alloy, and Ma for Co-5.3Fe alloy. Co-4Fe alloy exhibits higher strength and Co-5.3Fe alloy is more ductile, which should be due to the fact the former containing more ε martensite and the latter containing more γ phase, as described in the previous part. Generally, the stress-strain curves of NiTi and other SMAs exhibit a stress plateau with little work hardening till about 8% before rapid work hardening, which is associated with the reorientation of martensitic variants or the stress-induced martensitic transformation depending on the martensitic or parent-phase state of the alloy [1,2]. However, in the case of Co-Fe alloys, the stress plateau completely disappears, and high work hardening is constantly observed in the stress-strain curves, demonstrating the prematurely dislocation slip during the reversible movements of martensitic variants. It is well known that the strain recovered due to SME occurs solely through the motion of the intervariant boundaries, without any contribution from normal slip. From this point, methods should be tried to increase the critical stress of slip in Co-Fe alloys, so as to improve the SME. Anyway, CoFe alloys are much ductile than present FSMAs. This can be also proved by the SEM microscopy of the fracture surface of Co-5.3Fe alloy after tensile, as shown in Fig. 9. The fracture surface shows clear ductile cup and cone features on a fine scale. 4. CONCLUSION In this paper, the microstructure, martensitic transformation temperature, shape memory effect as well as magnetic and mechanical properties of Co-xFe (x=2-6 wt.%) alloys were investigated to reveal their potentials as ferromagnetic shape memory alloys. The following conclusions are made: 1. Co-xFe (x=2-6 wt.%) alloys exhibit a single γ phase of fcc for x 5.65 and dual phases containing ε martensite and γ for x 5.6. The martensitic transformation temperatures of these alloys are almost linearly decreased with increasing Fe content. 2. The recoverable strain due to the γ(fcc)/ε(hcp) martensitic transformation of Co-4Fe (wt.%) alloys was measured to be 0.86% upon pre-strained to 1.47%. 3. The Curie temperature and the saturation magnetization at room temperature are 1085 and emu/g for Co-4Fe alloy, and 1075 and emu/g for Co-5.3Fe alloy, respectively. 4. Co-Fe alloys are ductile as compared with other ferromagnetic shape memory alloys. The tensile stress and the strain were measured to be 383Ma and 17.5% for Co-4Fe alloy, and 382Ma and 30.2% for Co-5.3Fe alloy, respectively. ACKNOWLEDGMENTS This work was supported by rogram for New Century Excellent Talents in Fujian rovince University (NCETFJ), the Youth Science Foundation of Fujian rovince of China (No.2006F3119), and the Natural Science Foundation of China (No ). The authors are grateful to rof. Y Li of Beihang University for the help in carrying out some experiments. REFERENCES 1. K. Otsuka and C.M. Wayman, Shape Memory Materials, Cambridge University ress, K. Otsuka and X. Ren, Recent development in the research of shape memory alloys, Intermetallics 7, (1999). 3. K. Otsuka and X. Ren, hysical metallurgy of Ti-Ni-based shape memory alloys, rogr. Mater. Sci. 50, (2005). 4. K. Ullakko, J. K. Huang, C. Kantner, R.C. O'Handley and V. V. Kokorin, Large magnetic-field-induced strains in NiB2BMnGa single crystals, Appl. hys. Lett. 69, (1996). roc. of SIE Vol I-6
7 5. J. ons, V. A. Chernenko, R. Santamarta and E. Cesari, Crystal structure of martensitic phases in Ni-Mn-Ga shape memory alloys, Acta Mater. 48, (2000). 6. C. B. Jiang, G. Feng and H. B. Xu, Co-occurrence of magnetic and structural transitions in the Heusler alloy NiB53BMnB25BGaB22B, Appl. hys. Lett. 80, (2002). 7. S. Besseghini, E. Villa, F. assaretti, M. ini and F. Bonfanti, lastic deformation of NiMnGa polycrystals, Mater. Sci. Eng. A 378, (2004). 8. T. Wada, Y. C. Liang, H. Kato1, T. Tagawa, M. Taya and T. Mori, Structural change and straining in Fe-d polycrystals by magnetic field, Mater. Sci. Eng. A 361, (2003). 9. T. Kakeshita, T. Takeuchi, T. Fukuda, M. Tsujiguchi, T. Saburi, R. Oshima and S. Muto, Giant magnetostriction in an ordered FeB3Bt single crystal exhibiting a martensitic transformation, Appl. hys. Lett. 77, (2000). 10. M. Wuttig, J. Li and C. Craciunescu, A new ferromagnetic shape memory alloy system, Scripta Mater. 44, (2001). 11. H. Morito, A. Fujita, K. Fukamichi, R. Kainuma and K. Ishida, Magnetocrystalline anisotropy in single-crystal Co- Ni-Al ferromagnetic shape-memory alloy, Appl. hys. Lett. 81, (2002). 12. Y. Li, C. B. Jiang, T. Liang, Y. Q. Ma and H. B. Xu, Martensitic transformation and magnetization of Ni-Fe-Ga ferromagnetic shape memory alloys, Scripta Mater. 48, (2003). 13. Y. Sutou, Y. Imano, N. Koeda, T. Omori, R. Kainuma, K. Ishida and K. Oikawa, Magnetic and martensitic transformation of NiMnX(X=In, Sn, Sb) ferromagnetic shape memory alloys, Appl. hys. Lett. 85, (2004). 14. A. Sozinov, A. A. Likhachev, N. Lanska and K. Ullakko, Giant magnetic-field-induced strain in NiMnGa sevenlayered martensitic phase, Appl. hys. Lett. 80, (2002). 15. Y. Liu, W. M. Zhou, X. Qi, B. H. Jiang, W. H. Wang, J. L. Chen, G. H. Wu, J. C. Wang, C. D. Feng and H. Q. Xie, Magneto-shape-memory effect in Co-Ni single crystals, Appl. hys. Lett. 78, (2001). 16. T. Omori, Y. Sutou, K. Oikawa, R. Kainuma and K. Ishida, Shape memory effect in the ferromagnetic Co-14 at.% Al alloy, Scripta Mater. 52, (2005). 17. T. Omori, W. Ito, K. Ando, K. Oikawa, R. Kainuma and K. Ishida, FCC/HC martensitic transformation and hightemperature shape memory properties in Co-Si alloys, Mater. Trans. 47, (2006). 18. G. E. Dieter, Mechanical metallurgy. McGraw-Hill, New York, B. C. Maji and M. Krishnan, The effect of microstructure on the shape recovery of a Fe-Mn-Si-Cr-Ni stainless steel shape memory alloy, Scripta Mater. 48, (2003). 20. Y. N. Liu, H. Yang, Y. Liu, B. H. Jiang, J. Ding and R. Woodward, Thermally induced fcc hcp martensitic transformation in Co Ni, Acta Mater. 53, (2005) J. Webster, K. R. A. Ziebeck, S. L. Town and M. S. eak, Magnetic order and phase transformation in NiB2BMnGa, hilos. Mag. B 49, (1984). 22. T. Omori, Y. Sutou, K. Oikawa, R. Kainuma and K. Ishida, Shape memory and magnetic properties of Co-Al ferromagnetic shape memory alloys, Mater. Sci. Eng. A , (2006). roc. of SIE Vol I-7
Magnetic field-induced reversible actuation using ferromagnetic shape memory alloys
Scripta Materialia 48 (2003) 1415 1419 www.actamat-journals.com Magnetic field-induced reversible actuation using ferromagnetic shape memory alloys Yuanchang Liang *, Yuji Sutou 1, Taishi Wada, Cheng-Chun
More informationPROPERTY OPTIMIZATION OF FERROMAGNETIC SHAPE MEMORY ALLOYS WITH RESPECT TO COST
Indian Institute of Technology Kharagpur From the SelectedWorks of Ajit Behera 2012 PROPERTY OPTIMIZATION OF FERROMAGNETIC SHAPE MEMORY ALLOYS WITH RESPECT TO COST Ajit Behera, Indian Institute of Technology
More informationPhase transformation kinetics and microstructure of NiTi shape memory alloy: effect of hydrostatic pressure
Bull. Mater. Sci., Vol., No. 4, August 2017, pp. 799 803 DOI.07/s12034-017-1413-1 Indian Academy of Sciences Phase transformation kinetics and microstructure of NiTi shape memory alloy: effect of hydrostatic
More informationPhase Transformation and Magnetic Properties of Ferromagnetic Cu-Mn-Ga Alloys* 1
Materials Transactions, Vol. 48, No. 11 (2007) pp. 2840 to 2846 Special Issue on Structural and Functional Control of Materials through Solid-Solid Phase Transformations in High Magnetic Fields #2007 The
More informationCHARACTERISTIC STUDY ON Ni50Mn45Sn5 by DSC & X-RAY ANALYSIS
Indian Institute of Technology Kharagpur From the SelectedWorks of Ajit Behera June 30, 2012 CHARACTERISTIC STUDY ON Ni50Mn45Sn5 by DSC & X-RAY ANALYSIS Ajit Behera, Indian Institute of Technology - Kharagpur
More informationDeformation Studies of Ni 55 Fe 19 Ga 26 Ferromagnetic Shape Memory Alloy
Available online at www.sciencedirect.com Physics Procedia 10 (2010) 105 110 Physics Procedia 00 (2010) 000 000 www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia 3rd International Symposium
More informationEffect of atomic order on the martensitic transformation of Ni Fe Ga alloys
Scripta Materialia 54 (2006) 1985 1989 www.actamat-journals.com Effect of atomic order on the martensitic transformation of Ni Fe Ga alloys R. Santamarta a, *, E. Cesari a, J. Font b, J. Muntasell b, J.
More informationInfluence of minor additions of boron and zirconium on shape memory properties and grain refinement of a Cu-Al-Mn shape memory alloy
ESOMAT 29, 528 (29) DOI:1.151/esomat/29528 Owned by the authors, published by EDP Sciences, 29 Influence of minor additions of boron and zirconium on shape memory properties and grain refinement of a Cu-Al-Mn
More informationFabrication and Characterization of Fe-Pd Ferromagnetic Shape-Memory Thin Films
Mat. Res. Soc. Symp. Proc. Vol. 785 24 Materials Research Society D7.4.1 Fabrication and Characterization of Fe-Pd Ferromagnetic Shape-Memory Thin Films Yuki Sugimura, Tzahi Cohen-Karni, Patrick McCluskey
More informationThermal and stress-induced martensitic transformations in NiFeGa single crystals under tension and compression
Scripta Materialia 54 (2006) 465 469 www.actamat-journals.com Thermal and stress-induced martensitic transformations in NiFeGa single crystals under tension and compression R.F. Hamilton a, C. Efstathiou
More informationSHAPE MEMORY EFFECT IN Cu-Sn-Mn TERNARY SHAPE MEMORY ALLOY PROCESSED BY INGOT METALLURGY
International Journal of Metallurgical & Materials Science and Engineering (IJMMSE) Vol.2, Issue 1 Mar 2012 12-20 TJPRC Pvt. Ltd., 12 SHAPE MEMORY EFFECT IN Cu-Sn-Mn TERNARY SHAPE MEMORY ALLOY PROCESSED
More informationThe Effect of Heat Treatment on the Microstructural and Superelastic Behavior of NiTi Alloy with 58.5 wt. % Ni
The Effect of Heat Treatment on the Microstructural and Superelastic Behavior of NiTi Alloy with 58.5 wt. % Ni M. Paryab* Mining and Metallurgical Engineering Department, Amirkabir University of Technology,
More informationComposition and temperature dependence of the crystal structure of Ni Mn Ga alloys
JOURNAL OF APPLIED PHYSICS VOLUME 95, NUMBER 12 15 JUNE 2004 Composition and temperature dependence of the crystal structure of Ni Mn Ga alloys N. Lanska a) Helsinki University of Technology, Laboratory
More informationAnalysis of Martensitic Transformation in Ni-Mn- Sn FSMA
Indian Institute of Technology Kharagpur From the SelectedWorks of Ajit Behera 2012 Analysis of Martensitic Transformation in Ni-Mn- Sn FSMA Ajit Behera, Indian Institute of Technology - Kharagpur Available
More informationExtruded Rods with <001> Axial Texture of Polycrystalline Ni-Mn-Ga Alloys
Materials Science Forum Online: 2009-12-03 ISSN: 1662-9752, Vol. 635, pp 189-194 doi:10.4028/www.scientific.net/msf.635.189 2010 Trans Tech Publications, Switzerland Extruded Rods with Axial Texture
More informationIn-situ TEM straining of tetragonal martensite of Ni-Mn-Ga alloy
, 04007 (2009) DOI:10.1051/esomat/200904007 Owned by the authors, published by EDP Sciences, 2009 In-situ TEM straining of tetragonal martensite of Ni-Mn-Ga alloy Yanling Ge a 1, 1, Ilkka Aaltio a a, Simo-Pekka
More informationA New Constitutive Model for Ferromagnetic Shape Memory Alloy Particulate Composites
Copyright 2015 Tech Science Press CMC, vol.48, no.2, pp.91-102, 2015 A New Constitutive Model for Ferromagnetic Shape Memory Alloy Particulate Composites H.T. Li 1,2,3, Z.Y. Guo 1,2, J. Wen 1,2, H.G. Xiang
More information2003 American Institute of Physics. Reused with permission.
O. Heczko and L. Straka, Temperature Dependence and Temperature Limits of Magnetic Shape Memory Effect, Journal of Applied Physics 94 (2003) 7139 7143. 2003 American Institute of Physics Reused with permission.
More informationEffects of Coiling Temperature on Microstructure and Mechanical Properties of High-strength Hot-rolled Steel Plates Containing Cu, Cr and Ni
, pp. 692 698 Effects of Coiling Temperature on Microstructure and Mechanical Properties of High-strength Hot-rolled Steel Plates Containing Cu, Cr and Ni Sung-Joon KIM, Chang Gil LEE, Tae-Ho LEE and Sunghak
More informationMagnetostriction of Stress-Induced Martensite. Abstract
Magnetostriction of Stress-Induced Martensite J. Cui and M. Wuttig Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742 T. W. Shield Department of Aerospace Engineering
More informationStructural and Magnetic Transformation in Ferromagnetic Ni-Mn-Ga Alloy
Proc Indian Natn Sci Acad 79 No. 3 September 2013 pp. 373-378 Printed in India. Research Paper Structural and Magnetic Transformation in Ferromagnetic Ni-Mn-Ga Alloy K PUSHPANATHAN 1*, S SATHYA 1 and S
More informationFormation of texture and anisotropy of shape memory effect in Fe-Mn-Si-Co-Cr alloy
J. Phys. IVFrance 11 (200fc) Pr8-211 EDP Sciences, Les Ulis Formation of texture and anisotropy of shape memory effect in Fe-Mn-Si-Co-Cr alloy K.K. Jee, J.O. Song 1, W.Y. Jang 2, M.C. Shin and C.S. Choi
More informationRapidly Solidified Fe-Mn-based Shape Memory Alloys P. Donner, E. Hornbogen, Institut fur Werkstoffe, Ruhr-Universität Bochum, D Bochum
267 Rapidly Solidified Fe-Mn-based Shape Memory Alloys P. Donner, E. Hornbogen, Institut fur Werkstoffe, Ruhr-Universität Bochum, D - 4630 Bochum Introduction Meltspinning is a method well suited to obtain
More informationSuperelasticity in TiNi Alloys and Its Applications in Smart Systems. Wei Cai, Yufeng Zheng, Xianglong Meng and Liancheng Zhao
Materials Science Forum Vols. 7-79 (200) pp. 191-1920 online at http://www.scientific.net 200 Trans Tech Publications, Switzerland Superelasticity in TiNi Alloys and Its Applications in Smart Systems Wei
More informationGamma-phase influence on shape memory properties in Ni-Mn- Co-Ga-Gd high-temperature shape memory alloys
Acta Metall. Sin. (Engl. Lett.), 2018, 31, 471 476 https://doi.org/10.1007/s40195-017-0675-3 Gamma-phase influence on shape memory properties in Ni-Mn- Co-Ga-Gd high-temperature shape memory alloys Wei
More informationMagnetic Transformation in Ferromagnetic Ni-Mn-Ga Shape Memory Alloy
Magnetic Transformation in Ferromagnetic Ni-Mn-Ga Shape Memory Alloy K. Pushpanathan, R. Senthur Pandi, R. Chokkalingam, A.Sivakami and M.Mahendran Department of Physics, Thiagarajar College of Engineering,
More informationEffects of silicon and chromium additions on glass forming ability and microhardness of Co-based bulk metallic glasses
Indian Journal of Engineering & Materials Sciences Vol. 21, February 2014, pp. 111-115 Effects of silicon and chromium additions on glass forming ability and microhardness of Co-based bulk metallic glasses
More informationFabrication of Ti-Ni-Zr Shape Memory Alloy by P/M Process
Materials Transactions, Vol. 5, No. 1 (29) pp. 2446 to 245 #29 The Japan Institute of Metals Fabrication of Ti-Ni-Zr Shape Memory Alloy by P/M Process Akira Terayama 1, Koji Nagai 2; * and Hideki Kyogoku
More informationA Thesis RUIXIAN ZHU. Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of
THE EFFECT OF CRYSTALLOGRAPHIC ORIENTATION AND THERMO-MECHANICAL LOADING CONDITIONS ON THE PHASE TRANSFORMATION CHARACTERISTICS OF FERROMAGNETIC SHAPE MEMORY ALLOYS A Thesis by RUIXIAN ZHU Submitted to
More informationTwinning Behaviour of Textured Polycrystalline Ni-Mn-Ga Alloy After Hot Extrusion
Materials Science Forum Online: 2009-12-03 ISSN: 1662-9752, Vol. 635, pp 195-199 doi:10.4028/www.scientific.net/msf.635.195 2010 Trans Tech Publications, Switzerland Twinning Behaviour of Textured Polycrystalline
More informationXRD and TEM analysis of microstructure in the welding zone of 9Cr 1Mo V Nb heat-resisting steel
Bull. Mater. Sci., Vol. 25, No. 3, June 2002, pp. 213 217. Indian Academy of Sciences. XRD and TEM analysis of microstructure in the welding zone of 9Cr 1Mo V Nb heat-resisting steel LI YAJIANG*, WANG
More informationarxiv: v1 [cond-mat.mtrl-sci] 19 Nov 2007
Room Temperature Magnetocaloric Effect in Ni-Mn-In P. A. Bhobe and A. K. Nigam Tata Institute of Fundamental Research, arxiv:711.2896v1 [cond-mat.mtrl-sci] 19 Nov 27 Homi Bhabha Road, Mumbai-4 5 India.
More informationMechanical Properties and Shape Memory Behavior of Ti-Mo-Ga Alloys
Materials Transactions, Vol. 45, No. 4 (24) pp. 19 to 195 Special Issue on Frontiers of Smart Biomaterials #24 The Japan Institute of Metals Mechanical Properties and Shape Memory Behavior of Ti-Mo-Ga
More informationMagnetic field-induced reversible variant rearrangement in Fe Pd single crystals
Acta Materialia 5 (004) 508 5091 www.actamat-journals.com Magnetic field-induced reversible variant rearrangement in Fe Pd single crystals Tokujiro Yamamoto a, Minoru Taya a, *, Yuji Sutou b, Yuanchang
More informationMagnetomechanical performance and mechanical properties of Ni-Mn-Ga ferromagnetic shape memory alloys
Ames Laboratory Conference Papers, Posters, and Presentations Ames Laboratory 6-14-2000 Magnetomechanical performance and mechanical properties of Ni-Mn-Ga ferromagnetic shape memory alloys Steven J. Murray
More informationEffects of Carbon Content and Thermo-Mechanical Treatment on Fe 59 Mn 30 Si 6 Cr 5 C X (X ¼ 0:015{0:1 mass%) Shape Memory Alloys
Materials Transactions, Vol. 49, No. 8 (2008) pp. 1853 to 1857 #2008 The Japan Institute of Metals Effects of Carbon Content and Thermo-Mechanical Treatment on Fe 59 Mn 30 Si 6 Cr 5 C X (X ¼ 0:015{0:1
More informationInfluences of Reduction Ratio on Mechanical Properties and Transformation Temperature of NiTi Drawn Wires.
Influences of Reduction Ratio on Mechanical Properties and Transformation Temperature of NiTi Drawn Wires. Abstracts N.Noonai 1, A.Khantachawana 1,2 *, P.Kaewtathip 1 and J. Kajornchaiyakul 3 1 Department
More informationMANUFACTURING AND EVALUATING CU-BASED SHAPE MEMORY ALLOY BY HOT EXTRUSION OF PM SAMPLES MADE BY MECHANICAL ALLOYING
MANUFACTURING AND EVALUATING CU-BASED SHAPE MEMORY ALLOY BY HOT EXTRUSION OF PM SAMPLES MADE BY MECHANICAL ALLOYING Sajjad Pourkhorshidi, Mohammad Naeimi, Nader Parvin, Seyed Mohammad Mahdi Zamani, Hamid
More informationInfluence of Crystal Orientations on the Bendability of an Al-Mg-Si Alloy
Materials Transactions, Vol. 51, No. 4 (2010) pp. 614 to 619 Special Issue on Crystallographic Orientation Distribution and Related Properties in Advanced Materials II #2010 The Japan Institute of Light
More informationEffect of Nitrogen Addition on Superelasticity of Ti-Zr-Nb Alloys* 1
Materials Transactions, Vol. 5, No. 12 (9) pp. 2726 to 273 Special Issue on Low Cost Reduction Processes, Roles of Low Cost Elements and Interstitial Elements, and Microstructural Control for Generalization
More informationEffect of Heat Treatment on the Low-temperature Resistance of 42CrMo Steel in Electric Power Fittings
2015 2 nd International Conference on Material Engineering and Application (ICMEA 2015) ISBN: 978-1-60595-323-6 Effect of Heat Treatment on the Low-temperature Resistance of 42CrMo Steel in Electric Power
More informationDepartment of Materials Science, Graduate School of Engineering, Tohoku University, Aramaki Aoba-yama 02, Sendai , Japan
/. Phys. IV France 11 (2001) Pr8-205 EDP Sciences, es Ulis Effect of ausaging on the morphology of martensite in an Fe-25%Ni-7.5%Si alloy Y. Himuro, O. Ikeda, R. Kainuma and K. Ishida Department of Materials
More informationMicrostructure and low-temperature phase transition in Ni 2 FeGa Heusler alloy
Journal of Alloys and Compounds 425 (2006) 176 180 Microstructure and low-temperature phase transition in Ni 2 FeGa Heusler alloy Libao Liu a,b,c,, Shiyou Fu c, Zhuhong Liu b, Guangheng Wu b, Xiudong Sun
More informationShape Memory Alloys: Thermoelastic Martensite
Shape Memory Alloys: Thermoelastic Martensite MatE 152 Thermoelastic Martensite Shape Memory Alloys (SMA) The strain of transformation is much less than the martensitic transformation in steel Thus product
More informationThermomechanical characterization of an Fe-Mn-Si-Cr-Ni-VC shape memory alloy for application in prestressed concrete structures
Thermomechanical characterization of an Fe-Mn-Si-Cr-Ni-VC shape memory alloy for application in prestressed concrete structures *W.J. Lee, B. Weber, G. Feltrin, M. Motavalli and C. Leinenbach Empa, Swiss
More informationARTICLE IN PRESS. Materials Science and Engineering A xxx (2007) xxx xxx
Materials Science and Engineering A xxx (2007) xxx xxx Orientation dependence and tension/compression asymmetry of shape memory effect and superelasticity in ferromagnetic Co 40 Ni 33 Al 27, Co 49 Ni 21
More informationTexture and Microstructure of Ti-Ni Melt-Spun Shape Memory Alloy Ribbons
Materials Transactions, Vol. 45, No. 2 (2004) pp. 214 to 218 Special Issue on Materials and Devices for Intelligent/Smart Systems #2004 The Japan Institute of Metals Texture and Microstructure of Ti-Ni
More informationMagnetic Shape Memory Alloys
Sebastian Fähler and Kathrin Dörr, IFW Dresden Magnetic Shape Memory Alloys www.adaptamat.com Magnetically Induced Martensite (MIM) Magnetically Induced Reorientation (MIR) Requirements for actuation Exotic
More informationFormation and Soft Magnetic Properties of Co Fe Si B Nb Bulk Glassy Alloys
Materials Transactions, Vol. 43, No. 5 (2002) pp. 1230 to 1234 c 2002 The Japan Institute of Metals EXPRESS REGULAR ARTICLE Formation and Soft Magnetic Properties of Co Fe Si B Nb Bulk Glassy Alloys Akihisa
More informationPhase Transitions Module γ-2: VSM study of Curie Temperatures 1 Instructor: Silvija Gradečak
3.014 Materials Laboratory November 13 th 18 th, 2006 Lab week 3 Phase Transitions Module γ-2: VSM study of Curie Temperatures 1 Instructor: Silvija Gradečak Objectives: a) Understand magnetic and thermal
More informationIMPROVEMENT OF MECHANICAL PROPERTIES IN FE-MN-TI STEEL BY ALLOYING WITH CR AND MO , Tehran, Iran. Tabriz, Iran
IMPROVEMENT OF MECHANICAL PROPERTIES IN FE-MN-TI STEEL BY ALLOYING WITH CR AND MO M. Nili-Ahmadabadi a, S. Hossein Nedjad b, M. Sadeghi a and H. Shirazi a a Deptartment of Metallurgy and Materials Engineering,
More informationMECHANICS EXAMINATION ON THE WEAR BEHAVIOUR OF SHAPE MEMORY ALLOYS
MECHANICS EXAMINATION ON THE WEAR BEHAVIOUR OF SHAPE MEMORY ALLOYS Wenyi Yan Computational Engineering Research Centre, Faculty of Engineering and Surveying, University of Southern Queensland, Toowoomba,
More informationARTICLE IN PRESS. Intermetallics
Intermetallics xxx (2010) 1 7 Contents lists available at ScienceDirect Intermetallics journal homepage: www.elsevier.com/locate/intermet Thermal and microstructural evolution under ageing of several high-temperature
More informationInfluence of Magnetic Field Intensity on the Temperature Dependence of Magnetization of Ni 2.08 Mn 0.96 Ga 0.96 Alloy
J. Electromagnetic Analysis & Applications, 2010, 2, 431-435 doi:10.4236/jemaa.2010.27056 Published Online July 2010 (http://www.scirp.org/journal/jemaa) 431 Influence of Magnetic Field Intensity on the
More informationIntroduction to Materials Science
EPMA Powder Metallurgy Summer School 27 June 1 July 2016 Valencia, Spain Introduction to Materials Science Prof. Alberto Molinari University of Trento, Italy Some of the figures used in this presentation
More informationUniaxial Ratcheting Behaviors of Metals with Different Crystal Structures or Values of Fault Energy: Macroscopic Experiments
J. Mater. Sci. Technol., 11, 7(5), 5-5. Uniaxial Ratcheting Behaviors of Metals with Different Crystal Structures or Values of Fault Energy: Macroscopic Experiments Guozheng Kang 1), Yujie Liu ), Yawei
More informationTwo successive magneto-structural transformations and their. relation to enhanced magnetocaloric effect for Ni 55.8 Mn 18.1 Ga 26.
Two successive magneto-structural transformations and their relation to enhanced magnetocaloric effect for Ni 55.8 Mn 18.1 Ga 26.1 Heusler alloy Zhe Li 1,*, Kun Xu 1, Yuanlei Zhang 1, Chang Tao 1, Dong
More informationTENSION/COMPRESSION ASYMMETRY IN CREEP BEHAVIOR OF A Ni-BASED SUPERALLOY
Pergamon Scripta Materialia, Vol. 41, No. 5, pp. 461 465, 1999 Elsevier Science Ltd Copyright 1999 Acta Metallurgica Inc. Printed in the USA. All rights reserved. 1359-6462/99/$ see front matter PII S1359-6462(99)00191-8
More informationEffect of seven-layered martensite in Ni-Mn-Ga magnetic shape memory alloys
Indian Journal of Engineering & Materials Sciences Vol. 24, August 2017, pp. 301-305 Effect of seven-layered martensite in Ni-Mn-Ga magnetic shape memory alloys F A Sajitha Banu, S Vinodh Kumar, S Seenithurai
More informationPublication Elsevier Science. Reprinted with permission from Elsevier Ltd..
Publication 4 Ge Y., Jiang H., Sozinov A., Söderberg O., Lanska N, Keränen J., Kauppinen E. I., Lindroos V. K. Hannula S.-P. Crystal structure and macrotwin interface of fivelayered martensite in Ni-Mn-Ga
More informationCHAPTER 2 LITERATURE REVIEW
13 CHAPTER 2 LITERATURE REVIEW 2.1 PROGRESS IN MFIS OF Ni-Mn-Ga ALLOY For more than 40 years, the Ni-Mn-Ga alloys have been studied as one of the Heusler alloys with the chemical formula X 2 YZ. Heusler
More informationMECHANICAL PROPERTIES OF AN ULTRAFINE GRAINED C-MN STEEL
MECHANICAL PROPERTIES OF AN ULTRAFINE GRAINED C-MN STEEL Rongjie Song; Dirk Ponge; Dierk Raabe Max-Planck-Institut für Eisenforschung, Max-Planck-Str. 1, 40237 Düsseldorf, Germany ABSTRACT The mechanical
More informationBonding strength of Al/Mg/Al alloy tri-metallic laminates fabricated
Bull. Mater. Sci., Vol. 34, No. 4, July 2011, pp. 805 810. Indian Academy of Sciences. Bonding strength of Al/Mg/Al alloy tri-metallic laminates fabricated by hot rolling X P ZHANG, *, M J TAN, T H YANG,
More informationEffect of magnetic field on solid-solid phase transformations in iron-based ferromagnetic alloys
Journal of Physics: Conference Series Effect of magnetic field on solid-solid phase transformations in iron-based ferromagnetic alloys To cite this article: T Kakeshita and T Fukuda 29 J. Phys.: Conf.
More informationarxiv:cond-mat/ v1 [cond-mat.mtrl-sci] 24 May 2000
Magnetic-Field-Controlled Twin Boundaries Motion and Giant Magneto-Mechanical Effects in Ni-Mn-Ga Shape Memory Alloy arxiv:cond-mat/0005425v1 [cond-mat.mtrl-sci] 24 May 2000 A. A. Likhachev Institute of
More informationEffect of Nitrogen Addition on Shape Memory Characteristics of Fe Mn Si Cr Alloy
Materials Transactions, Vol. 43, No. 5 (2002) pp. 920 to 925 Special Issue on Smart Materials-Fundamentals and Applications c 2002 The Japan Institute of Metals Effect of Nitrogen Addition on Shape Memory
More informationRelationship between Microstructures and Mechanical Properties in Ti 4.5Al 2Mo 1.6V 0.5Fe 0.3Si 0.03C for Next-Generation Aircraft Applications +1
Materials Transactions, Vol. 54, No. 5 (213) pp. 783 to 79 213 The Japan Institute of Light Metals Relationship between Microstructures and Mechanical Properties in Ti 4.5Al 2Mo 1.6V.5Fe.3Si.3C for Next-Generation
More informationDetection of Sensitization for 600 Alloy and Austenitic Stainless Steel by Magnetic Field Sensor
19 th World Conference on Non-Destructive Testing 16 Detection of Sensitization for 6 Alloy and Austenitic Stainless Steel by Magnetic Field Sensor Hiroaki KIKUCHI 1, Hiroki YANAGIWARA 1, Hideki TAKAHASHI
More informationMechanical Performance of Resistance Spot Welding Joint of Dissimilar High Strength Steels Shang-gong ZHOU, Kai-wei LIU, Mian WANG and Jiang-wei REN *
2016 International Conference on Advanced Materials Science and Technology (AMST 2016) ISBN: 978-1-60595-397-7 Mechanical Performance of Resistance Spot Welding Joint of Dissimilar High Strength Steels
More informationComposition Design Modeling and Experimental Verification of (Co Ni Al) Shape Memory Alloys
Engineering and Technology Journal DOI: http://dx.doi.org/10.30684/etj.36.1a.13 M.N. Arbilei Biomedical Engineering Department, UOT Baghdad, Iraq 70031@uotechnology.edu.iq Vol. 36, Part A, No. 1, 2018
More informationSTABILIZATION OF THE SHAPE MEMORY EFFECT IN NiTi: AN EXPERIMENTAL INVESTIGATION
Scripta mater. 42 (2000) 1145 1150 www.elsevier.com/locate/scriptamat STABILIZATION OF THE SHAPE MEMORY EFFECT IN NiTi: AN EXPERIMENTAL INVESTIGATION B. Erbstoeszer, B. Armstrong, M. Taya, and K. Inoue
More informationMAGNETO-THERMO-MECHANICAL RESPONSE AND MAGNETO-CALORIC EFFECT IN MAGNETIC SHAPE MEMORY ALLOYS. A Thesis CENGIZ YEGIN
MAGNETO-THERMO-MECHANICAL RESPONSE AND MAGNETO-CALORIC EFFECT IN MAGNETIC SHAPE MEMORY ALLOYS A Thesis by CENGIZ YEGIN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment
More informationIn-situ Observation of Microstructure Change in Steel by EBSD
NIPPON STEEL & SUMITOMO METAL TECHNICAL REPORT No. 114 MARCH 2017 Technical Report UDC 621. 785. 36 In-situ Observation of Microstructure Change in Steel by EBSD Masayuki WAKITA* Seiichi SUZUKI Abstract
More informationAcoustic Emission Behavior of Martensitic Transformation in Early Stage during Deformation of Cu-Al-Ni Shape Memory Alloy Single Crystals
Acoustic Emission Behavior of Martensitic Transformation in Early Stage during Deformation of Cu-Al-Ni Shape Memory Alloy Single Crystals Kenichi YOSHIDA, Kotaro HANABUSA and Takuo NAGAMACHI Department
More informationAFM Observation of Microstructural Changes in Fe-Mn-Si-Al Shape Memory Alloy* 1
Materials Transactions, Vol. 49, No. 4 (2008) pp. 812 to 816 #2008 The Japan Institute of Metals AFM Observation of Microstructural Changes in Fe-Mn-Si-Al Shape Memory Alloy* 1 Motomichi Koyama 1; * 2,
More informationInvestigation of shape recovery stress for ferrous shape memory alloy
Computational Methods and Experimental Measurements XIV 485 Investigation of shape recovery stress for ferrous shape memory alloy H. Naoi 1, M. Wada 2, T. Koike 2, H. Yamamoto 2 & T. Maruyama 3 1 Faculty
More informationConsolidation of [(Fe 0:5 Co 0:5 ) 0:75 Si 0:05 B 0:2 ] 96 Nb 4 Metallic Glassy Powder by SPS Method* 1
Materials Transactions, Vol. 50, No. 9 (2009) pp. 2264 to 2269 #2009 The Japan Institute of Metals Consolidation of [(Fe 0:5 Co 0:5 ) 0:75 Si 0:05 B 0:2 ] 96 Nb 4 Metallic Glassy Powder by SPS Method*
More informationEVOLUTION OF HOT-ROLLED TEXTURE DURING COLD ROLLING AND ANNEALING IN TI-IF STEEL
Advances in Materials Science and Engineering: An International Journal (MSEJ), Vol., No., September EVOLUTION OF HOT-ROLLED TEXTURE DURING COLD ROLLING AND ANNEALING IN TI-IF STEEL Guo Yan-hui,, Zhang
More informationACCUMULATIVE ROLL BONDING TECHNOLOGY OF ALUMINUM ALLOYS. Stefano ARGENTERO
Abstract ACCUMULATIVE ROLL BONDING TECHNOLOGY OF ALUMINUM ALLOYS Stefano ARGENTERO Centro Sviluppo Materiali S.p.A., Via di Castel Romano 100, s.argentero@c-s-m.it The Accumulative Roll Bonding (ARB) is
More informationMechanical Properties of Bulk Metallic Glasses and composites
Mechanical Properties of Bulk Metallic Glasses and composites M.L. Lee 1 *, Y. Li 1, 2, Y. Zhong 1, C.W. Carter 1, 3 1. Advanced Materials for Micro- and Nano- Systems Programmes, Singapore-MIT Alliance,
More informationInvestigation on ferromagnetic shape memory alloys
The STAM archive is now available from the IOP Publishing website http://www.iop.org/journals/stam Science and Technology of Advanced Materials 6 (2005) 772 777 www.elsevier.com/locate/stam Investigation
More informationTensile Strength and Pseudo-elasticity of YAG Laser Spot Melted Ti-Ni Shape Memory Alloy Wires
Materials Transactions, Vol. 45, No. 4 (24) pp. 17 to 176 Special Issue on Frontiers of Smart Biomaterials #24 The Japan Institute of Metals Tensile Strength and Pseudo-elasticity of YAG Laser Spot Melted
More informationFormation and Mechanical Properties of Mg 97 Zn 1 RE 2 Alloys with Long-Period Stacking Ordered Structure
Materials Transactions, Vol. 48, No. 11 (2007) pp. 2986 to 2992 #2007 The Japan Institute of Metals EXPRESS REGULAR ARTICLE Formation and Mechanical Properties of Mg 97 Zn 1 RE 2 Alloys with Long-Period
More informationME 254 MATERIALS ENGINEERING 1 st Semester 1431/ rd Mid-Term Exam (1 hr)
1 st Semester 1431/1432 3 rd Mid-Term Exam (1 hr) Question 1 a) Answer the following: 1. Do all metals have the same slip system? Why or why not? 2. For each of edge, screw and mixed dislocations, cite
More informationResearch Article Improvement in the Mechanical Properties of High Temperature Shape Memory Alloy (Ti 50 Ni 25 Pd 25 ) by Copper Addition
Advances in Materials Science and Engineering Volume 215, Article ID 434923, 7 pages http://dx.doi.org/1.1155/215/434923 Research Article Improvement in the Mechanical Properties of High Temperature Shape
More informationCold Rolling-Induced Multistage Transformation in Ni-Rich NiTi Shape Memory Alloys
Materials Transactions, Vol. 49, No. 9 (2008) pp. 2136 to 2140 #2008 The Japan Institute of Metals EXPRESS REGULAR ARTICLE Cold Rolling-Induced Multistage Transformation in Ni-Rich NiTi Shape Memory Alloys
More informationField-induced multiple metamagnetization in phase transition from paramagnetic austenite to ferromagnetic martensite in MnNi 1-x Fe x Ge
Field-induced multiple metamagnetization in phase transition from paramagnetic austenite to ferromagnetic martensite in MnNi 1-x Fe x Ge E.K. Liu, G.J. Li, W. Zhu, L.Feng, J. L. Chen, G. H. Wu, and W.
More informationEffect of Ti on Charpy Fracture Energy and Other Mechanical Properties of ASTM A 710 Grade B Cu-Precipitation-Strengthened Steel
To be presented at Materials Science & Technology 2009 Conference (MS&T 09) October 25-29, 2009, Pittsburgh, PA Effect of Ti on Charpy Fracture Energy and Other Mechanical Properties of ASTM A 710 Grade
More informationReading assignment. Shape memory. Shape-memory alloy (SMA) Superelastic behavior. Topic 11
Reading assignment Shape memory Topic 11 Lecture notes on Shape Memory on the course webpage Askeland and Phule, The Science and Engineering of Materials, 4 th Ed., Sec. 11-11 (first page only) and Sec.
More informationAUSTENITE-MARTENSITE TRANSFORMATION IN NANOSTRUCTURED AISI316L STAINLESS STEEL POWDER INDUCED DURING MECHANICAL MILLING
Journal of Materials Science and Engineering with Advanced Technology Volume 4, Number 2, 2011, Pages 93-105 AUSTENITE-MARTENSITE TRANSFORMATION IN NANOSTRUCTURED AISI316L STAINLESS STEEL POWDER INDUCED
More informationDEVELOPMENT OF NI-MN-BASED FERROMAGNETIC SHAPE MEMORY ALLOYS. Zhigang Wu
DEVELOPMENT OF NI-MN-BASED FERROMAGNETIC SHAPE MEMORY ALLOYS Zhigang Wu School of Mechanical and Chemical Engineering The University of Western Australia This thesis is presented for the degree of Doctor
More informationCrack initiation and fracture features of Fe Co B Si Nb bulk metallic glass during compression
Focussed on Crack Paths Crack initiation and fracture features of Fe Co B Si Nb bulk metallic glass during compression S. Lesz, A. Januszka, S. Griner, R. Nowosielski Silesian University of Technology,
More informationContinuous Transition of Deformation Modes in Fe-30Mn-5Si-1Al Alloy* 1
Materials Transactions, Vol. 51, No. 7 (2010) pp. 1194 to 1199 #2010 The Japan Institute of Metals Continuous Transition of Deformation Modes in Fe-30Mn-5Si-1Al Alloy* 1 Motomichi Koyama 1; * 2, Takahiro
More informationThe Effect of Crystallographic Texture on the Wrap Bendability in AA5754-O Temper Sheet Alloy
Proceedings of the 12th International Conference on Aluminium Alloys, September 5-9, 2010, Yokohama, Japan 2010 The Japan Institute of Light Metals pp. 607-612 607 The Effect of Crystallographic Texture
More informationModel Calculation of Stress-Strain Relationship of Polycrystalline Fe- Pd and 3D Phase Transformation Diagram of Ferromagnetic Shape Memory Alloys
Model Calculation of Stress-Strain Relationship of Polycrystalline Fe- Pd and D Phase Transformation Diagram of Ferromagnetic Shape Memory Alloys Yuanchang Liang a, Taishi Wada a, Tetsuya Tagawa b, M.
More informationHeat treatment and effects of Cr and Ni in low alloy steel
Bull. Mater. Sci., Vol. 34, No. 7, December 2011, pp. 1439 1445. Indian Academy of Sciences. Heat treatment and effects of Cr and Ni in low alloy steel MOHAMMAD ABDUR RAZZAK Materials and Metallurgical
More informationEffects of Ar and He on Microstructures and Properties of Laser Welded 800MPa TRIP Steel
Effects of Ar and He on Microstructures and Properties of Laser Welded 800MPa TRIP Steel Wen-Quan Wang 1,, Shu-Cheng Dong 1, Fan Jiang 1, and Ming Cao 1 1 School of Material Science and Engineering, Jilin
More informationDevelopment of Film Actuator Operated by Magnetic Field for Micro-Machine
Development of Film Actuator Operated by Magnetic Field for Micro-Machine HIROMASA YABE AND YOSHITAKE NISHI Department of Materials Science, TOKAI University, 1117 Kitakaname, Hiratsuka, Kanagawa, 259-1292
More informationDeformation Microstructure and Texture in a Cold-Rolled Austenitic Steel with Low Stacking-Fault Energy
Materials Transactions, Vol. 51, No. 4 (2010) pp. 620 to 624 Special Issue on Crystallographic Orientation Distribution and Related Properties in Advanced Materials II #2010 The Japan Institute of Metals
More informationEffects of Mechanical Alloying on Microstructure and Microhardness of Nanocrystalline NiTi Shape Memory Alloy
Int J Advanced Design and Manufacturing Technology, Vol. 5/ No. 5/ December - 01 5 Effects of Mechanical Alloying on Microstructure and Microhardness of Nanocrystalline NiTi Shape Memory Alloy M. Ghadimi*
More information