THERMAL STABILITY OF RAPIDLY SOLIDIFIED Al-Fe-X ALLOYS. Milena VODĚROVÁ, Pavel NOVÁK, Alena MICHALCOVÁ, Dalibor VOJTĚCH

Size: px
Start display at page:

Download "THERMAL STABILITY OF RAPIDLY SOLIDIFIED Al-Fe-X ALLOYS. Milena VODĚROVÁ, Pavel NOVÁK, Alena MICHALCOVÁ, Dalibor VOJTĚCH"

Transcription

1 THERMAL STABILITY OF RAPIDLY SOLIDIFIED Al-Fe-X ALLOYS Milena VODĚROVÁ, Pavel NOVÁK, Alena MICHALCOVÁ, Dalibor VOJTĚCH Department of Metals and Corrosion Engineering, Institute of Chemical Technology, Prague, Technická 5, Prague 6, Czech Republic, Abstract Aluminium alloys prepared by rapid solidification are perspective materials for many special applications. In this work, microstructure of three rapidly solidified aluminium alloys has been studied and compared. Alloys of following chemical composition were studied: Al-11Fe, Al-7Fe-4Ni and Al-7Fe-4Cr (wt. %). Nickel and chromium were chosen as alloying elements due to the low solubility and diffusivity in aluminium matrix which improves mechanical properties and thermal stability at elevated temperatures. Samples in the form of thin ribbons were prepared by melt spinning technique. Microstructure of investigated alloys was studied by scanning electron microscopy (SEM). Phase composition was determined by x- ray diffraction (XRD). Vickers hardness (HV 0,005) was measured to estimate mechanical properties as well as thermal stability after long term annealing (500 h) at 300 and 400 C. Rapidly solidified alloys consist predominantly of supersaturated solid solution of alloying elements in aluminium on the wheel side and fine particles of intermetallic phases on the free side. Material hardness decreases with increasing temperature. Chromium improves the thermal stability more than nickel. Keywords: Aluminium alloys, rapid solidification, transition metals, melt spinning 1. INTRODUCTION Aluminium alloys are well known as construction materials used especially in automotive or aerospace industry. These alloys are dominantly used for light components due to relatively low price connected with good strength-to-weight ratio. However, thermal stability of aluminium alloyed by Zn, Cu or Mg manufactured by conventional casting is unsatisfactory. Applicability limits of common Al alloys do not exceed C. It is already mentioned in literature [1, 2, 3] that thermal stability can be improved by alloying aluminium by transition metals (TM), e.g. Fe, Ni, Cr or Mn. Transition metals are able to stabilize the alloy properties at elevated temperatures due to low solubility and diffusivity in aluminium matrix. The other way how to improve thermal stability and mechanical properties is to refine the microstructure by increasing cooling rate. In technical praxis, atomisation, melt spinning and re-melting the surface by electron beam or laser beam are commonly used. Atomisation of the melt by inert gas or liquid produces metallic powder; the solidification speed varies in K.s -1. Melt spinning process allows reaching solidification rates even higher, about K.s -1.[4] In this process, molten alloy is cast onto intensively cooled wheel. Thin metallic ribbon is formed on the wheel s surface. Rapid solidification (RS) allows formation of supersaturated solid solutions, metastable and quasicrystalline or amorphous phases. [5, 6, 7] This has significant effect on microstructure of the alloy, which becomes very fine and fine microstructure signifies better mechanical properties or thermal stability. When compared with traditional aluminium alloys, it is possible to use these materials in wide range of industrial branches and in special applications. Expansion of automotive industry results in increasing production of aluminium alloys. But increasing production is closely related to dealing with waste. Aluminium scrap is often contaminated by mixture of metals and metalloids (Fe, Si, Cr, Ni, Cu or Mg), which are very difficult to be separated. Generally, there is no effective and economically suitable method for this waste treatment. Higher amounts of iron can be separated by magnetic separation, it is also possible to dilute aluminium scrap by pure aluminium, but this is

2 very costly and increases the material price. Producing the master alloys including transition metals from aluminium scrap seems to be very perspective. These master alloys can be further processed, e.g. by mentioned rapid solidification. Manufactured alloys have better properties such as hardness, thermal stability, better ductility connected to low density. Due to this unique combination they can probably replace titanium alloys in some lower-demanding applications, while the price and density are lower. Aim of this work was to describe the microstructure and properties of Al-Fe, Al-Fe-Ni and Al- Fe- Cr alloys prepared by melt spinning. Chemical composition of investigated alloys was chosen as a model of iron- and stainless steel containing Al scrap. 2. EXPERIMENTAL PART Investigated samples were composed of Al-11Fe, Al-7Fe-4Ni and Al-7Fe-4Cr (wt. %). Chemical composition of investigated alloys was chosen in order to model the metallic waste containing e.g. stainless steel containing relatively high amount of nickel and chromium. Alloys were prepared by melting of the AlFe11 master alloy and by melting the master alloy with pure nickel and chromium. Samples in the form of thin ribbons were prepared by melt spinning. This process allows solidification rates about K.s -1. The molten alloy was cast onto high- frequency rotating copper alloy wheel. Melting was obtained under argon protective atmosphere; temperature of the melt was 1200 C. The process yields aluminium alloy ribbons of approx. 30 μm of thickness. Melt spinning was performed by Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava. Microstructure of all the samples was investigated by Olympus PME3 light microscope and TESCAN VEGA 3 LMU scanning electron microscope (SEM) equipped with Oxford Instruments INCA 350 EDS analyser. Mechanical properties of investigated alloys were examined by room temperature Hanemann hardness measurements with a 0,005 kg (HV 0,005) load. Phase composition was determined by x- ray diffraction (XRD, X Pert Pro). Thermal stability was investigated by Hanemann hardness measurement after annealing at 300 and 400 C for 500 h. 3. RESULTS AND DISCUSSION 3.1 Microstructure Microstructure of melt spun ribbons obtained by scanning electron microscope is shown in following micrographs (fig. 1-3). Rapidly solidified sample is usually composed of supersaturated solid solution of alloying elements in aluminium on the wheel side where the cooling rate is more intensive. Air side of the ribbon consists of fine stable and metastable intermetallic particles. There is also significant transition zone between solid solution and intermetallic zone. Particle size increases while moving from wheel side to the air side.

3 Fig. 1 Microstructure of Al-11Fe (SEM) Fig. 2 Microstructure of Al-7Fe-4Ni (SEM) Fig. 3 Microstructure of Al-7Fe-4Cr (SEM) XRD analysis proved that wheel side of the ribbon is dominantly composed of supersaturated solid solution and nanocrystalline intermetallic phases, mainly metastable Al 6 Fe, while nickel or chromium remain dissolved in the aluminium matrix. Air side of Al-11Fe consists of fine Al 6 Fe and negligible amount of Al 13 Fe 4. In the structure of Al-7Fe-4Ni, both wheel side and air side are composed of supersaturated solid solution of iron and nickel in aluminium, Al 3 Ni 2, Al 13 Fe 4 and quasicrystalline phase Al 75 Ni 10 Fe 15. The amount of intermetallics and particle size differs when moving from wheel side to less intensively cooled part of the ribbon. Wheel side of Al-7Fe-4Cr is composed of chromium and iron dissolved in solid solution, air side contains low amount of FeAl 3 and quasicrystalls of Al 80 Cr 13,5 Fe 6,5.

4 3.2 Thermal stability Results obtained by long term annealing at C are shown in fig Samples of Al-Fe annealed at 300 C exhibit oscillating values of microhardness caused probably by precipitation of intermetallics and grain coarsening. Chromium and nickel containing alloy are more stable, microhardness of those materials does not exceed 150 HV. Increase of annealing temperature to 400 C results in dramatic decrease of hardness of Al-Fe and Al-Fe-Ni. Al-Fe-Cr stands at the value about 100 HV. It was evaluated that Al-Fe and Al-Fe-Ni alloys are not suitable for using at elevated temperatures because of their unsatisfactory hardness, changing with annealing time. Fig. 4 Long- term annealing at 300 C Fig. 5 Long- term annealing at 400 C 4. CONCLUSIONS This study was focused on microstructure and thermal stability of Al- TM alloys prepared by melt spinning. Microstructure of melt spun ribbons is composed of supersaturated solid solutions of transition metals in aluminium matrix and very fine stable, metastable and quasicrystalline intermetallics. Transition elements block the intermetallics growth and that results in very fine microstructure. On the other hand, Al- Fe alloy

5 has reached the highest value of microhardness in default state which is caused presumably by large amount of fine metastable phase Al 6 Fe. Chromium has significantly better effect on improving thermal stability. At 300 C, hardness of Al-Fe-Cr lies in the average of Al- Fe and Al-Fe-Ni values, but at 400 C remains at almost same values, in contrary to distinctly lower values for two other alloys. This fact can be explained by decomposition of quasicrystalline phases into more stable fine intermetallics. Low values of hardness for Al- Fe and Al- Fe- Ni are caused by easier coarsening of intermetallic phases. Unsatisfactory thermal stability determines these two alloys to be used only for thermally non-stressed components. Hardness of Al- Fe- Cr kept above 100 HV for both temperatures is promising. ACKNOWLEDGEMENT This research was financially supported by Czech Science Foundation, project No. P108/12/G043. LITERATURE [1] KATGERMAN, l., Dom, F. Rapidly solidified aluminium alloys by meltspinning. Materials Science and Engineering A, 2004, vol , p [2] NAYAK, S., et al. Formation of metastable phases and nanocomposite structures in rapidly solidified Al- Fe alloys, Materials Science and Engineering A, 2011, vol. 528, p [3] ROZENAK, P. Deformation and fracture of Al-8Fe rapidly solidified alloys. Journal of Materials Science, 1996, vol. 31, p [4] VOJTĚCH, D., et al. Rychlé chlazení kovů význam, technologie a využití. Chem. Listy, 2004, vol. 98, p [5] TASHLYKOVA- BUSHKEVICH, I., et al. Structural and phase analysis of rapidly solidified Al- Fe alloys. Journal of Surface Investigation. X- ray, Synchrotron and Neutron Techniques, 2008, vol. 2, p [6] KARAKÖSE, E., et al. Structural investigations of mechanical properties of Al based rapidly solidified alloys. Mater. Des., 2011, vol. 32, p [7] SIVTSOVA, P.A., Shepelevich V.G. A study of rapidly solidified foils of an alloy of the Al- Fe- Cr- system. Metal Science and Heat Treatment, 2007, vol.49, p

MECHANICAL PROPERTIES AND THERMAL STABILITY OF ALSI-X BASED ALLOYS PREPARED BY CENTRIFUGAL ATOMIZATION. Filip PRŮŠA*, Dalibor VOJTĚCH

MECHANICAL PROPERTIES AND THERMAL STABILITY OF ALSI-X BASED ALLOYS PREPARED BY CENTRIFUGAL ATOMIZATION. Filip PRŮŠA*, Dalibor VOJTĚCH MECHANICAL PROPERTIES AND THERMAL STABILITY OF ALSI-X BASED ALLOYS PREPARED BY CENTRIFUGAL ATOMIZATION Filip PRŮŠA*, Dalibor VOJTĚCH Department of Metals and Corrosion Engineering, Institute of Chemical

More information

MICROSTRUCTURE AND PROPERTIES OD RAPID SOLIDIFIED AL-SI-FE AND AL-SI-FE-CR ALLOYS PREPARED BY CENTRIFUGAL ATOMIZATION. Filip PRŮŠA*, Dalibor VOJTĚCH

MICROSTRUCTURE AND PROPERTIES OD RAPID SOLIDIFIED AL-SI-FE AND AL-SI-FE-CR ALLOYS PREPARED BY CENTRIFUGAL ATOMIZATION. Filip PRŮŠA*, Dalibor VOJTĚCH MICROSTRUCTURE AND PROPERTIES OD RAPID SOLIDIFIED AL-SI-FE AND AL-SI-FE-CR ALLOYS PREPARED BY CENTRIFUGAL ATOMIZATION Filip PRŮŠA*, Dalibor VOJTĚCH Department of Metals and Corrosion Engineering, Institute

More information

PROPERTIES OF AL-BASED ALLOYS PREPARED BY CENTRIFUGAL ATOMISATION AND HOT EXTRUSION. Filip PRŮŠA, Dalibor VOJTĚCH

PROPERTIES OF AL-BASED ALLOYS PREPARED BY CENTRIFUGAL ATOMISATION AND HOT EXTRUSION. Filip PRŮŠA, Dalibor VOJTĚCH PROPERTIES OF AL-BASED ALLOYS PREPARED BY CENTRIFUGAL ATOMISATION AND HOT EXTRUSION Filip PRŮŠA, Dalibor VOJTĚCH Institute of Chemical Technology Prague, Department of Metals and Corrosion Engineering,

More information

Fe-Al-Si-X ALLOYS FOR HIGH TEMPERATURE APPLICATIONS

Fe-Al-Si-X ALLOYS FOR HIGH TEMPERATURE APPLICATIONS Fe-Al-Si-X ALLOYS FOR HIGH TEMPERATURE APPLICATIONS Pavel NOVÁK a, Václav HO EK, Lucie MEJZLÍKOVÁ, Jan ERÁK, Dalibor VOJT CH Department of Metals and Corrosion Engineering, Institute of Chemical Technology,

More information

PREPARATION AND PROPERTIES OF Al Fe AND Al Fe Cr ALLOYS. Petra HANUSOVÁ 1, Pavel NOVÁK 2

PREPARATION AND PROPERTIES OF Al Fe AND Al Fe Cr ALLOYS. Petra HANUSOVÁ 1, Pavel NOVÁK 2 PREPARATION AND PROPERTIES OF Al Fe AND Al Fe Cr ALLOYS Petra HANUSOVÁ 1, Pavel NOVÁK 2 1 Brno University of Technology, Faculty of Mechanical Engineering, Institute of Material Science and Engineering,

More information

OXIDATION RESISTANCE AND THERMAL STABILITY OF Ti-Al-Si ALLOYS PRODUCED BY REACTIVE SINTERING

OXIDATION RESISTANCE AND THERMAL STABILITY OF Ti-Al-Si ALLOYS PRODUCED BY REACTIVE SINTERING METAL 2009 OXIDATION RESISTANCE AND THERMAL STABILITY OF Ti-Al-Si ALLOYS PRODUCED BY REACTIVE SINTERING Pavel Novák Filip Průša Jan Šerák Dalibor Vojtěch Alena Michalcová Department of Metals and Corrosion

More information

MAGNESIUM-ZINC ALLOY PREPARED BY MECHANICAL ALLOYING AND SPARK PLASMA SINTERING. Michaela FOUSOVA, Jaroslav CAPEK, Dalibor VOJTECH

MAGNESIUM-ZINC ALLOY PREPARED BY MECHANICAL ALLOYING AND SPARK PLASMA SINTERING. Michaela FOUSOVA, Jaroslav CAPEK, Dalibor VOJTECH MAGNESIUM-ZINC ALLOY PREPARED BY MECHANICAL ALLOYING AND SPARK PLASMA SINTERING Michaela FOUSOVA, Jaroslav CAPEK, Dalibor VOJTECH Department of Metals and Corrosion Engineering, Institute of Chemical Technology,

More information

FORMATION OF INTERMETALLLICS DURING REACTIVE SINTERING PRODUCTION OF Fe- Al ALLOYS

FORMATION OF INTERMETALLLICS DURING REACTIVE SINTERING PRODUCTION OF Fe- Al ALLOYS FORMATION OF INTERMETALLLICS DURING REACTIVE SINTERING PRODUCTION OF Fe- Al ALLOYS Pavel NOVÁK 1, Alena MICHALCOVÁ 1, Ivo MAREK 1, Martina MUDROVÁ 2, Josef BEDNARČÍK 3, Karel SAKSL 4 1 Institute of Chemical

More information

PROPERTIES OF NANOCRYSTALLINE Al-Cr-Fe-Ti ALLOYS PREPARED BY POWDER METALLURGY. Karel DÁM, Dalibor VOJTĚCH, Filip PRŮŠA

PROPERTIES OF NANOCRYSTALLINE Al-Cr-Fe-Ti ALLOYS PREPARED BY POWDER METALLURGY. Karel DÁM, Dalibor VOJTĚCH, Filip PRŮŠA PROPERTIES OF NANOCRYSTALLINE Al-Cr-Fe-Ti ALLOYS PREPARED BY POWDER METALLURGY Karel DÁM, Dalibor VOJTĚCH, Filip PRŮŠA Department of Metals and Corrosion Engineering, Institute of Chemical Thechnology,

More information

STRUCTURE EVOLUTION OF AlCr5.5Fe2Ti1 ALLOY DURING ITS COMPACTIZATION

STRUCTURE EVOLUTION OF AlCr5.5Fe2Ti1 ALLOY DURING ITS COMPACTIZATION STRUCTURE EVOLUTION OF AlCr5.5Fe2Ti1 ALLOY DURING ITS COMPACTIZATION Alena MICHALCOVÁ a,b, Dalibor VOJTĚCH a, Pavel NOVÁK a, Jan DRAHOKOUPIL c, Kamil KOLAŘÍK d a Institute of Chemical Technology, Prague,

More information

EFFECT OF ALLOYING ELEMENTS ON PROPERTIES OF PM Ti-Al-Si ALLOYS

EFFECT OF ALLOYING ELEMENTS ON PROPERTIES OF PM Ti-Al-Si ALLOYS Acta Metallurgica Slovaca, Vol. 19. 2013, No. 4, p. 240-246 240 EFFECT OF ALLOYING ELEMENTS ON PROPERTIES OF PM Ti-Al-Si ALLOYS Pavel Novák 1)*, Jan Kříž 1), Alena Michalcová 1), Dalibor Vojtěch 1) 1)

More information

INFLUENCE OF SELECTIVE LEACHING PARAMETERS ON PROPERTIES OF SILVER NANOPARTICLES. Ivo MAREK, Alena MICHALCOVÁ, Dalibor VOJTĚCH

INFLUENCE OF SELECTIVE LEACHING PARAMETERS ON PROPERTIES OF SILVER NANOPARTICLES. Ivo MAREK, Alena MICHALCOVÁ, Dalibor VOJTĚCH Abstract INFLUENCE OF SELECTIVE LEACHING PARAMETERS ON PROPERTIES OF SILVER NANOPARTICLES Ivo MAREK, Alena MICHALCOVÁ, Dalibor VOJTĚCH Institute of Chemical Technology Prague, Technická 5, Prague 6, 166

More information

THE HYPEREUTECTIC PM ALLOYS ON THE Al BASE

THE HYPEREUTECTIC PM ALLOYS ON THE Al BASE Powder Metallurgy Progress, Vol.3 (2003), No 2 94 THE HYPEREUTECTIC PM ALLOYS ON THE Al BASE J. Ďurišin Abstract The microstructure of AlSi 26 Ni 8 and AlSi 26 Ni 6 Fe 2 materials, prepared by the hot

More information

THE EFFECT OF HEAT TREATMENT ON THE STRUCTURE OF NB AND CR DOPED FE 3. Martin ŠVEC, Věra VODIČKOVÁ, Pavel HANUS

THE EFFECT OF HEAT TREATMENT ON THE STRUCTURE OF NB AND CR DOPED FE 3. Martin ŠVEC, Věra VODIČKOVÁ, Pavel HANUS THE EFFECT OF HEAT TREATMENT ON THE STRUCTURE OF NB AND CR DOPED FE 3 AL ALLOY Martin ŠVEC, Věra VODIČKOVÁ, Pavel HANUS Department of Material Science, Technical University of Liberec, Czech Republic Abstrakt

More information

PREPARATION OF THE NITI SHAPE MEMORY ALLOY BY THE TE-SHS METHOD INFLUENCE OF THE SINTERING TIME

PREPARATION OF THE NITI SHAPE MEMORY ALLOY BY THE TE-SHS METHOD INFLUENCE OF THE SINTERING TIME PREPARATION OF THE NITI SHAPE MEMORY ALLOY BY THE TE-SHS METHOD INFLUENCE OF THE SINTERING TIME Jaroslav ČAPEK, Vojtěch KUČERA, Michaela FOUSOVÁ, Dalibor VOJTĚCH Department of Metals and Corrosion Engineering,

More information

Keywords. Aluminium-based amorphous alloys; melt spinning; crystallization behaviour; microhardness.

Keywords. Aluminium-based amorphous alloys; melt spinning; crystallization behaviour; microhardness. PRAMANA c Indian Academy of Sciences Vol. 65, No. 4 journal of October 2005 physics pp. 745 751 Effect of rare-earth elements on nanophase evolution, crystallization behaviour and mechanical properties

More information

STRUCTURE AND PROPERTIES OF ALUMINUM ALLOYS WITH ADDITIONS OF TRANSITION METALS PRODUCED VIA COUPLED RAPID SOLIDIFICATION AND HOT EXTRUSION

STRUCTURE AND PROPERTIES OF ALUMINUM ALLOYS WITH ADDITIONS OF TRANSITION METALS PRODUCED VIA COUPLED RAPID SOLIDIFICATION AND HOT EXTRUSION STRUCTURE AND PROPERTIES OF ALUMINUM ALLOYS WITH ADDITIONS OF TRANSITION METALS PRODUCED VIA COUPLED RAPID SOLIDIFICATION AND HOT EXTRUSION KULA Anna 1, BLAZ Ludwik 1 1 AGH University of Science and Technology,

More information

Electron Beam Melted (EBM) Co-Cr-Mo Alloy for Orthopaedic Implant Applications Abstract Introduction The Electron Beam Melting Process

Electron Beam Melted (EBM) Co-Cr-Mo Alloy for Orthopaedic Implant Applications Abstract Introduction The Electron Beam Melting Process Electron Beam Melted (EBM) Co-Cr-Mo Alloy for Orthopaedic Implant Applications R.S. Kircher, A.M. Christensen, K.W. Wurth Medical Modeling, Inc., Golden, CO 80401 Abstract The Electron Beam Melting (EBM)

More information

CHARACTERISATION OF INTERMETALLIC INCLUSIONS OBTAINED BY DISSOLUTION OF IRON ALLOYING ADDITIVES IN MOLTEN ALUMINIUM. Varužan Kevorkijan *

CHARACTERISATION OF INTERMETALLIC INCLUSIONS OBTAINED BY DISSOLUTION OF IRON ALLOYING ADDITIVES IN MOLTEN ALUMINIUM. Varužan Kevorkijan * Association of Metallurgical Engineers of Serbia AMES Scientific paper UDC: 669.13'71 CHARACTERISATION OF INTERMETALLIC INCLUSIONS OBTAINED BY DISSOLUTION OF IRON ALLOYING ADDITIVES IN MOLTEN ALUMINIUM

More information

Global Journal of Engineering Science and Research Management

Global Journal of Engineering Science and Research Management DIFFUSION BONDING OF AL ALLOY USING DIFFERENT IINTERLAYERS Assist. Prof. Dr. Ahmed A. Akbar*, Samer K. Khaleel * Asst. Prof. Dr. at University of Technology, Production Engineering and Metallurgy, Iraq

More information

Nanocrystalline structure and Mechanical Properties of Vapor Quenched Al-Zr-Fe Alloy Sheets Prepared by Electron-Beam Deposition

Nanocrystalline structure and Mechanical Properties of Vapor Quenched Al-Zr-Fe Alloy Sheets Prepared by Electron-Beam Deposition Materials Transactions, Vol. 44, No. 10 (2003) pp. 1948 to 1954 Special Issue on Nano-Hetero Structures in Advanced Metallic Materials #2003 The Japan Institute of Metals Nanocrystalline structure and

More information

PREPARATION OF THE NiTi ALLOY BY A POWDER METALLURGY TECHNIQUE. Jaroslav CAPEK, Dalibor VOJTECH, Pavel NOVAK

PREPARATION OF THE NiTi ALLOY BY A POWDER METALLURGY TECHNIQUE. Jaroslav CAPEK, Dalibor VOJTECH, Pavel NOVAK PREPARATION OF THE NiTi ALLOY BY A POWDER METALLURGY TECHNIQUE Jaroslav CAPEK, Dalibor VOJTECH, Pavel NOVAK Department of Metals and Corrosion Engineering, Institute of Chemical Technology, Prague, Technická

More information

THE STRUCTURE AND MECHANICAL PROPERTIES OF NiCrBSi COATINGS PREPARED BY LASER BEAM CLADDING

THE STRUCTURE AND MECHANICAL PROPERTIES OF NiCrBSi COATINGS PREPARED BY LASER BEAM CLADDING Materials Engineering, Vol. 17, 2010, No. 1 11 THE STRUCTURE AND MECHANICAL PROPERTIES OF NiCrBSi COATINGS PREPARED BY LASER BEAM CLADDING Zita Iždinská 1, Ahmed Nasher 1, Karol Iždinský 2 Received 29

More information

Localized Corrosion of a 7075 Aluminum Alloy Exposed to KCl

Localized Corrosion of a 7075 Aluminum Alloy Exposed to KCl Localized Corrosion of a 7075 Aluminum Alloy Exposed to KCl Christopher F. Mallinson Department of Mechanical Engineering Sciences The Surface Analysis Laboratory Monday, 20 April 2015 1 Outline Introduction

More information

AUSTENITE-MARTENSITE TRANSFORMATION IN NANOSTRUCTURED AISI316L STAINLESS STEEL POWDER INDUCED DURING MECHANICAL MILLING

AUSTENITE-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 information

THE EFFECT OF ZIRCONIUM CONTENT ON THE PHASE STRUCTURE OF FE 3

THE EFFECT OF ZIRCONIUM CONTENT ON THE PHASE STRUCTURE OF FE 3 THE EFFECT OF ZIRCONIUM CONTENT ON THE PHASE STRUCTURE OF FE 3 AL-XC TYPE INTERMETALLIC ALLOYS Věra VODIČKOVÁ 1, Petr KRATOCHVÍL 2, Stanislav DANIŠ 2, Martin ŠVEC 1 1 Technical University of Liberec, Faculty

More information

Amorphous Metallic Alloys. 1.General features 2.Structure 3.Producing 4. Properties

Amorphous Metallic Alloys. 1.General features 2.Structure 3.Producing 4. Properties Amorphous Metallic Alloys 1.General features 2.Structure 3.Producing 4. Properties Amorphous metallic alloys or metallic glasses have emerged as a new class of engineering materials after vitrficationof

More information

THE INFLUENCE OF NICKEL INTERLAYER FOR DIFFUSION WELDING OF TITANIUM AND AUSTENITIC STAINESS STEEL

THE INFLUENCE OF NICKEL INTERLAYER FOR DIFFUSION WELDING OF TITANIUM AND AUSTENITIC STAINESS STEEL THE INFLUENCE OF NICKEL INTERLAYER FOR DIFFUSION WELDING OF TITANIUM AND AUSTENITIC STAINESS STEEL Ladislav KOLAŘÍK, Marie KOLAŘÍKOVÁ, Pavel NOVÁK, Martin SAHUL, Petr VONDROUŠ CTU in Prague, Faculty of

More information

COMPARISON OF SEMIFINISHED PRODUCT INFLUENCE ON SURFACE DEGRADATION OF FORGING ROLLS

COMPARISON OF SEMIFINISHED PRODUCT INFLUENCE ON SURFACE DEGRADATION OF FORGING ROLLS COMPARISON OF SEMIFINISHED PRODUCT INFLUENCE ON SURFACE DEGRADATION OF FORGING ROLLS Sylvia Kusmierczak, Natasa Naprstkova J. E. Purkyne University in Usti nad Labem, Czech Republic kusmierczak@fvtm.ujep.cz,

More information

Effect of Cooling Rate and Pouring Temperature on the Hardness and Wear Resistance of Bronze SAE660

Effect of Cooling Rate and Pouring Temperature on the Hardness and Wear Resistance of Bronze SAE660 A R C H I V E S of F O U N D R Y E N G I N E E R I N G Published quarterly as the organ of the Foundry Commission of the Polish Academy of Sciences ISSN (1897-3310) Volume 18 Issue 3/2018 144 151 25/3

More information

Effects of Alloying Additions and Cooling Rate on the Microstructures and Mechanical Properties of the Cast Al-Mg-Si Alloys

Effects of Alloying Additions and Cooling Rate on the Microstructures and Mechanical Properties of the Cast Al-Mg-Si Alloys Proceedings of the 12th International Conference on Aluminium Alloys, September 5-9, 2010, Yokohama, Japan 2010 2010 The Japan Institute of Light Metals pp. 1708-1713 1708 Effects of Alloying Additions

More information

Surface Modification of AISI 1020 Steel with TiC Coating by TIG Cladding Process

Surface Modification of AISI 1020 Steel with TiC Coating by TIG Cladding Process Surface Modification of AISI 1020 Steel with TiC Coating by TIG Cladding Process Supriya Shashikant Patil 1 Dr. Sachin K Patil 2 1 PG Student, Production Engineering Department, ajarambapu Institute of

More information

CHAPTER 1 INTRODUCTION

CHAPTER 1 INTRODUCTION 1 CHAPTER 1 INTRODUCTION 1.1 ALUMINIUM ALLOYS Aluminium and its alloys offer an extremely wide range of capability and applicability, with a unique combination of advantages that make the material of choice

More information

INFLUENCE OF HEAT TREATMENT ON TRIBOLOGICAL PROPERTIES OF Ni-P-Al 2 O 3 ELECTROLESS COATINGS

INFLUENCE OF HEAT TREATMENT ON TRIBOLOGICAL PROPERTIES OF Ni-P-Al 2 O 3 ELECTROLESS COATINGS INFLUENCE OF HEAT TREATMENT ON TRIBOLOGICAL PROPERTIES OF Ni-P-Al 2 O 3 ELECTROLESS COATINGS Michal NOVÁK a, Dalibor VOJTĚCH a, Tomáš VÍTŮ b a Department of Metals and Corrosion Engineering, ICT Prague,

More information

Influence of Remelting AlSi9Cu3 Alloy with Higher Iron Content on Mechanical Properties

Influence of Remelting AlSi9Cu3 Alloy with Higher Iron Content on Mechanical Properties A R C H I V E S of F O U N D R Y E N G I N E E R I N G Published quarterly as the organ of the Foundry Commission of the Polish Academy of Sciences ISSN (1897-3310) Volume 18 Issue 3/2018 25 30 4/3 Influence

More information

Amorphous Brazing Foil

Amorphous Brazing Foil Amorphous Brazing Foil Delivering Advantages to Your Critical Applications www.metglas.com Copyright 2015, Metglas, Inc. All Rights Reserved Metglas, Inc. is a Fully Owned Subsidiary of Hitachi Metals

More information

STRUCTURAL CHANGES IN Cr-V LEDEBURITIC STEEL DURING AUSTENITIZING AND QUENCHING

STRUCTURAL CHANGES IN Cr-V LEDEBURITIC STEEL DURING AUSTENITIZING AND QUENCHING 1 STRUCTURAL CHANGES IN Cr-V LEDEBURITIC STEEL DURING AUSTENITIZING AND QUENCHING Peter Jurči Received 28 th January 2010; accepted in revised form 16 th February 2010 Abstract The Vanadis 6 PM Cr-V ledeburitic

More information

MICROSTRUCTURAL CHARACTERIZATION OF MODIFIED COMMERCIAL 2219 ALUMINUM ALLOY

MICROSTRUCTURAL CHARACTERIZATION OF MODIFIED COMMERCIAL 2219 ALUMINUM ALLOY Association of Metallurgical Engineers Serbia and Montenegro Scientific paper AME UDC:669.715.17.2:62.192.4=2 MICROSTRUCTURAL CHARACTERIZATION OF MODIFIED COMMERCIAL 2219 ALUMINUM ALLOY V. MAKSIMOVIĆ 1,

More information

Rapidly Solidified Fe-Mn-based Shape Memory Alloys P. Donner, E. Hornbogen, Institut fur Werkstoffe, Ruhr-Universität Bochum, D Bochum

Rapidly 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 information

Characterization of Coatings on Grey Cast Iron Fabricated by Hot-dipping in Pure Al, AlSi11 and AlTi5 Alloys

Characterization of Coatings on Grey Cast Iron Fabricated by Hot-dipping in Pure Al, AlSi11 and AlTi5 Alloys A R C H I V E S o f F O U N D R Y E N G I N E E R I N G Published quarterly as the organ of the Foundry Commission of the Polish Academy of Sciences ISSN (1897-3310) Volume 14 Issue 1/2014 85 90 20/1 Characterization

More information

Mohammad Anwar Karim Id :

Mohammad Anwar Karim Id : Department of Mechanical and Industrial Engineering ME 8109 Casting and Solidification of Materials EFFECTS OF RAPID SOLIDIFICATION ON MICROSTRUCTURE AND PROPERTIES OF AL, MG & TI ALLOYS Winter 2012 Presented

More information

Surface Characterization of Laser Polished Indirect-SLS Parts

Surface Characterization of Laser Polished Indirect-SLS Parts Surface Characterization of Laser Polished Indirect-SLS Parts Jorge A. Ramos, David L. Bourell, Joseph J. Beaman Laboratory for Freeform Fabrication The University of Texas at Austin, Austin, Texas 78712

More information

FABRICATION AND CHARACTERIZATION OF NANOSTRUCTURED CU-15WT.% MO COMPOUND BY MECHANICAL ALLOYING

FABRICATION AND CHARACTERIZATION OF NANOSTRUCTURED CU-15WT.% MO COMPOUND BY MECHANICAL ALLOYING 2nd International Conference on Ultrafine Grained & Nanostructured Materials (UFGNSM) International Journal of Modern Physics: Conference Series Vol. 5 (2012) 456 463 World Scientific Publishing Company

More information

ULTRA-FINE GRAINED Al-Mg-Sc BASED ALLOYS STUDIED BY IN-SITU TRANSMISSION ELECTRON MICROSCOPY. Karel DÁM a, Pavel LEJČEK b

ULTRA-FINE GRAINED Al-Mg-Sc BASED ALLOYS STUDIED BY IN-SITU TRANSMISSION ELECTRON MICROSCOPY. Karel DÁM a, Pavel LEJČEK b ULTRA-FINE GRAINED Al-Mg-Sc BASED ALLOYS STUDIED BY IN-SITU TRANSMISSION ELECTRON MICROSCOPY Karel DÁM a, Pavel LEJČEK b a Department of Metals and Corrosion Engineering, Institute of Chemical Technology

More information

Šárka Houdková a Radek Enžl b Olga Bláhová c Petra Pechmanová a Jitka Hlinková c

Šárka Houdková a Radek Enžl b Olga Bláhová c Petra Pechmanová a Jitka Hlinková c METAL 22 MECHANICAL PROPERTIES OF THERMALLY SPRAYED COATINGS Šárka Houdková a Radek Enžl b Olga Bláhová c Petra Pechmanová a Jitka Hlinková c a Institute of Interdisciplinary Studies, University of West

More information

New Cu-based Bulk Metallic Glasses with High Strength of 2000 MPa

New Cu-based Bulk Metallic Glasses with High Strength of 2000 MPa Materials Science Forum Online: 2004-03-15 ISSN: 1662-9752, Vols. 449-452, pp 945-948 doi:10.4028/www.scientific.net/msf.449-452.945 2004 Trans Tech Publications, Switzerland New Cu-based Bulk Metallic

More information

CONVENTIONAL AND SEMI-SOLID A356 ALLOY WITH ADDITION OF STRONTIUM

CONVENTIONAL AND SEMI-SOLID A356 ALLOY WITH ADDITION OF STRONTIUM CONVENTIONAL AND SEMI-SOLID A356 ALLOY WITH ADDITION OF STRONTIUM Y.S.Seo, L.M.M.Nasir, H.Zuhailawati, A.S.Anasyida * Structural Materials Niche Area, School of Materials & Mineral Resources Engineering,

More information

Q-P PROCESSING OF HIGH-STRENGTH LOW-ALLOYED STEEL SHEETS

Q-P PROCESSING OF HIGH-STRENGTH LOW-ALLOYED STEEL SHEETS Q-P PROCESSING OF HIGH-STRENGTH LOW-ALLOYED STEEL SHEETS Daniela HAUSEROVÁ a, Zbyšek NOVÝ b, Jaromír DLOUHÝ c, Petr MOTYČKA d a,b,c,d COMTES FHT a.s., Průmyslová 995, 334 41 Dobřany, Czech Republic, comtesfht@comtesfht.cz

More information

COOPERATIVE PATENT CLASSIFICATION

COOPERATIVE PATENT CLASSIFICATION CPC C COOPERATIVE PATENT CLASSIFICATION CHEMISTRY; METALLURGY (S omitted) METALLURGY C22 METALLURGY (of iron C21); FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS (production of

More information

THE EFFECT OF TIC ADDITION ON MAGNETIC PROPERTIES OF ATOMISED NDFEB PERMANENT MAGNETIC POWDER

THE EFFECT OF TIC ADDITION ON MAGNETIC PROPERTIES OF ATOMISED NDFEB PERMANENT MAGNETIC POWDER THE EFFECT OF TIC ADDITION ON MAGNETIC PROPERTIES OF ATOMISED NDFEB PERMANENT MAGNETIC POWDER M. H. Saleh, E.A. Othman, F. Ismail, P. Hussain, M. Mohammad AMREC, SIRIM BHD. Lot 34, Jalan Hi-Tech 2/3, Kulim

More information

Microstructure and Microhardness of an Al-Zr-Ti-Fe Alloy

Microstructure and Microhardness of an Al-Zr-Ti-Fe Alloy Proceedings of the 12th International Conference on Aluminium Alloys, September 5-9, 2010, Yokohama, Japan 2010 2010 The Japan Institute of Light Metals pp. 1004-1008 1004 Microstructure and Microhardness

More information

Fabrication of Ni-Al Intermetallic Compounds on the Al Casting alloy by SHS Process

Fabrication of Ni-Al Intermetallic Compounds on the Al Casting alloy by SHS Process Fabrication of Ni-Al Intermetallic Compounds on the Al Casting alloy by SHS Process G.S. Cho *, K.R. Lee*, K.H. Choe*, K.W. Lee* and A. Ikenaga** *Advanced Material R/D Center, KITECH, 994-32 Dongchun-dong,

More information

The effect of ER4043 and ER5356 filler metal on welded Al 7075 by metal inert gas welding

The effect of ER4043 and ER5356 filler metal on welded Al 7075 by metal inert gas welding This paper is part of the Proceedings of the 2 International Conference on nd High Performance and Optimum Design of Structures and Materials (HPSM 2016) www.witconferences.com The effect of ER4043 and

More information

Production of AA 2024 Aluminum Alloy Ribbons by Melt Spinning Process

Production of AA 2024 Aluminum Alloy Ribbons by Melt Spinning Process Special Issue Article Submit Manuscript Turkish Journal of Electromechanics and Energy ISSN: 2547-975X Production of AA 2024 Aluminum Alloy Ribbons by Melt Spinning Process Sultan ÖZTÜRK 1, Sefa Emre SÜNBÜL

More information

Soft Magnetic Properties of Nanocystalline Fe Si B Nb Cu Rod Alloys Obtained by Crystallization of Cast Amorphous Phase

Soft Magnetic Properties of Nanocystalline Fe Si B Nb Cu Rod Alloys Obtained by Crystallization of Cast Amorphous Phase Materials Transactions, Vol. 43, No. 9 (2002) pp. 2337 to 2341 c 2002 The Japan Institute of Metals EXPRESS REGULAR ARTICLE Soft Magnetic Properties of Nanocystalline Fe Si B Nb Cu Rod Alloys Obtained

More information

THE EFFECT OF CERIUM ADDITION ON THE MICROSTRUCTURE OF AlSiMgCe ALLOY. Anasyida Abu Seman and Abdul Razak Daud.

THE EFFECT OF CERIUM ADDITION ON THE MICROSTRUCTURE OF AlSiMgCe ALLOY. Anasyida Abu Seman and Abdul Razak Daud. THE EFFECT OF CERIUM ADDITION ON THE MICROSTRUCTURE OF AlSiMgCe ALLOY Anasyida Abu Seman and Abdul Razak Daud. School of Applied Physics, Faculty of Science and Technology, University Kebangsaan Malaysia,

More information

SURFACE ANALYSIS OF WATER ATOMISED HIGH CHROMIUM ALLOYED STEEL POWDER BY X-RAY PHOTOELECTRON SPECTROSCOPY

SURFACE ANALYSIS OF WATER ATOMISED HIGH CHROMIUM ALLOYED STEEL POWDER BY X-RAY PHOTOELECTRON SPECTROSCOPY Powder Metallurgy Progress, Vol.13 (2013), No 2 57 SURFACE ANALYSIS OF WATER ATOMISED HIGH CHROMIUM ALLOYED STEEL POWDER BY X-RAY PHOTOELECTRON SPECTROSCOPY R. Shvab, E. Hryha, E. Dudrová, O. Bergman and

More information

Development of Fe-Cr-Ni-Mn-N High-Alloyed Powder Processed by Mechanical Alloying

Development of Fe-Cr-Ni-Mn-N High-Alloyed Powder Processed by Mechanical Alloying Open Journal of Metal, 2013, 3, 25-29 http://dx.doi.org/10.4236/ojmetal.2013.32a2004 Published Online August 2013 (http://www.scirp.org/journal/ojmetal) Development of Fe-Cr-Ni-Mn-N High-Alloyed Powder

More information

Microstructure Study of Diffusion Bonding of Centrifuged Structural Steel-Bronze

Microstructure Study of Diffusion Bonding of Centrifuged Structural Steel-Bronze ARCHIVES of FOUNDRY ENGINEERING DOI: 10.1515/afe-2016-0034 Published quarterly as the organ of the Foundry Commission of the Polish Academy of Sciences ISSN (2299-2944) Volume 16 Issue 2/2016 99 104 Microstructure

More information

LASER SURFACE ALLOYING (LSA) OF ALUMINIUM (AA 1200) WITH TiB 2 FOR HARDNESS IMPROVEMENT Paper (802)

LASER SURFACE ALLOYING (LSA) OF ALUMINIUM (AA 1200) WITH TiB 2 FOR HARDNESS IMPROVEMENT Paper (802) LASER SURFACE ALLOYING (LSA) OF ALUMINIUM (AA 200) WITH TiB 2 FOR HARDNESS IMPROVEMENT Paper (802) Abimbola Patricia Popoola *, Sisa Pityana,2 Department of Chemical and Metallurgical Engineering, Tshwane

More information

MACROSTRUCTURE, MICROSTRUCTURE AND MICROHARDNESS ANALYSIS

MACROSTRUCTURE, MICROSTRUCTURE AND MICROHARDNESS ANALYSIS 109 Chapter 5 MACROSTRUCTURE, MICROSTRUCTURE AND MICROHARDNESS ANALYSIS 5.1 INTRODUCTION The microstructural studies of friction welding helps in understanding microstructural changes occurred during friction

More information

Chulalongkorn University, Bangkok, Thailand. Chulalongkorn University, Bangkok, Thailand; Abstract

Chulalongkorn University, Bangkok, Thailand. Chulalongkorn University, Bangkok, Thailand; Abstract Journal of Metals, Materials and Minerals. Vol.16 No.2 pp.25-31, 2006 The Effect of Long-Term Thermal Exposure at Elevated Temperatures on Microstructures and Mechanical Properties in Centrifugally Casted

More information

Effects of Hot Extrusion Parameters on Microstructure and Properties of RS P/M Al-7Fe-1.4Mo-1.4Si Alloy. Based Composites

Effects of Hot Extrusion Parameters on Microstructure and Properties of RS P/M Al-7Fe-1.4Mo-1.4Si Alloy. Based Composites ID-1272 Effects of Hot Extrusion Parameters on Microstructure and Properties of RS P/M Al-7Fe-1.4Mo-1.4Si Alloy Based Composites P. Y. Li, S. L. Dai, H. J. Yu, S. C. Chai and Y. R. Li Beijing Institute

More information

High strength low alloy (HSLA).

High strength low alloy (HSLA). 7 Alloy Steels High strength low alloy (HSLA). a type of steel alloy that provides many benefits over regular steel alloys contain a very small percentage of carbon (less than one-tenth of a percent) and

More information

Introduction to the phase diagram Uses and limitations of phase diagrams Classification of phase diagrams Construction of phase diagrams

Introduction to the phase diagram Uses and limitations of phase diagrams Classification of phase diagrams Construction of phase diagrams Prof. A.K.M.B. Rashid Department of MME BUET, Dhaka Concept of alloying Classification of alloys Introduction to the phase diagram Uses and limitations of phase diagrams Classification of phase diagrams

More information

CHAPTER INTRODUCTION

CHAPTER INTRODUCTION 1 CHAPTER-1 1.0 INTRODUCTION Contents 1.0 Introduction 1 1.1 Aluminium alloys 2 1.2 Aluminium alloy classification 2 1.2.1 Aluminium alloys (Wrought) 3 1.2.2 Heat treatable alloys (Wrought). 3 1.2.3 Aluminum

More information

The Effect of SiC Whisker Addition on Bulk Amorphous Formation Abilities of La-Transition Metal-Al System

The Effect of SiC Whisker Addition on Bulk Amorphous Formation Abilities of La-Transition Metal-Al System The Effect of SiC Whisker Addition on Bulk Amorphous Formation Abilities of La-Transition Metal-Al System Takahito KOJIMA 1, Shuji AZUMO 2 and Katsuhisa NAGAYAMA 3 1 Graduate Student, Shibaura Institute

More information

HEAT TREATMENT OF REACTOR VESSEL STEEL AISI 321

HEAT TREATMENT OF REACTOR VESSEL STEEL AISI 321 HEAT TREATMENT OF REACTOR VESSEL STEEL AISI 321 Pavel PODANÝ a, Petr MARTÍNEK a, Petr NACHÁZEL a, Martin BALCAR b a COMTES FHT a.s., Dobřany, Czech Republic, EU, comtes@comtesfht.cz b ŽDAS a.s., Žďár nad

More information

Preparation and Investigation of Cu-Co- Al2O3 Nanocrystalline Metal Matrix Composites

Preparation and Investigation of Cu-Co- Al2O3 Nanocrystalline Metal Matrix Composites Preparation and Investigation of Cu-Co- Al2O3 Nanocrystalline Metal Matrix Composites R.Venkatesh Research Scholar Sathyabama University, Chennai TamilNadu, India S.Kumaraguru U.G Student Department of

More information

ME-371/571 ENGINEERING MATERIALS

ME-371/571 ENGINEERING MATERIALS ME-371/571 ENGINEERING MATERIALS Problem Set 2 1. An SAE-AISI 1035 steel alloy is slowly cooled from 950 C to room What is the pro-eutectoid phase, and at what temperature would it first appear? What are

More information

Influence of Spraying Conditions on Properties of Zr-Based Metallic Glass Coating by Gas Tunnel Type Plasma Spraying

Influence of Spraying Conditions on Properties of Zr-Based Metallic Glass Coating by Gas Tunnel Type Plasma Spraying Influence of Spraying Conditions on Properties of Zr-Based Metallic Glass by Gas Tunnel Type Plasma Spraying KOBAYASHI Akira *, KURODA Toshio *, KIMURA Hisamichi ** and INOUE Akihisa ** Abstract Metallic

More information

EFFECT OF PERCENTAGE REINFORCEMENT OF B4C ON THE TENSILE PROPERTY OF ALUMINIUM MATRIX COMPOSITES

EFFECT OF PERCENTAGE REINFORCEMENT OF B4C ON THE TENSILE PROPERTY OF ALUMINIUM MATRIX COMPOSITES Int. J. Mech. Eng. & Rob. Res. 2012 Gopal Krishna U B et al., 2012 Research Paper ISSN 2278 0149 www.ijmerr.com Vol. 1, No. 3, October 2012 2012 IJMERR. All Rights Reserved EFFECT OF PERCENTAGE REINFORCEMENT

More information

EFFECT OF YTTRIUM ADDITION ON MICROSTRUCTURE OF ALLOY Ti-47Al, PREPARED BY PLASMA MELTING AND VACUUM INDUCTION MELTING

EFFECT OF YTTRIUM ADDITION ON MICROSTRUCTURE OF ALLOY Ti-47Al, PREPARED BY PLASMA MELTING AND VACUUM INDUCTION MELTING EFFECT OF YTTRIUM ADDITION ON MICROSTRUCTURE OF ALLOY Ti-47Al, PREPARED BY PLASMA MELTING AND VACUUM INDUCTION MELTING Tomáš ČEGAN, Miroslav KURSA VŠB-TU Ostrava, 17. listopadu 15, 708 33, Ostrava-Poruba,

More information

Investigation on the homogenization annealing treatment of 5052-based aluminum alloys

Investigation on the homogenization annealing treatment of 5052-based aluminum alloys Indian Journal of Engineering & Materials Sciences Vol. 24, February 2017, pp. 57-62 Investigation on the homogenization annealing treatment of 5052-based aluminum alloys Jing Zhang*, Jingjing Zhao & Rulin

More information

MECHANICAL BEHAVIOUR OF AMORPHOUS Mg-23.5Ni RIBBONS

MECHANICAL BEHAVIOUR OF AMORPHOUS Mg-23.5Ni RIBBONS VIII Congreso Nacional de Propiedades Mecánicas en Sólidos, Gandía 2002 61-70 MECHANICAL BEHAVIOUR OF AMORPHOUS Mg-23.5Ni RIBBONS P. Pérez a, G.Garcés a, P. Adeva a and F. Sommer b a Centro Nacional de

More information

OPTIMALLASER TREATMENT PARAMETERS OF AA 6061-O ALUMINUM ALLOY

OPTIMALLASER TREATMENT PARAMETERS OF AA 6061-O ALUMINUM ALLOY OPTIMALLASER TREATMENT PARAMETERS OF AA 6061-O ALUMINUM ALLOY Waleed Al-Ashtari and Zahraa Abdulsattar Department of Mechanical Engineering, College of Engineering, University of Baghdad, Iraq E-Mail:

More information

Crack initiation and fracture features of Fe Co B Si Nb bulk metallic glass during compression

Crack 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 information

Effect of Vanadium on Subcritical Heat Treatment Behavior of Hypoeutectic 16 wt% Cr Cast Iron containing 2 wt% Mo

Effect of Vanadium on Subcritical Heat Treatment Behavior of Hypoeutectic 16 wt% Cr Cast Iron containing 2 wt% Mo Journal of Metals, Materials and Minerals, Vol.21 No.2 pp.13-18, 2011 Effect of Vanadium on Subcritical Heat Treatment Behavior of Hypoeutectic 16 wt% Cr Cast Iron containing 2 wt% Mo Rugauksorn JUNSAMOOT

More information

Chapter 9 Phase Diagrams. Dr. Feras Fraige

Chapter 9 Phase Diagrams. Dr. Feras Fraige Chapter 9 Phase Diagrams Dr. Feras Fraige Chapter Outline Definitions and basic concepts Phases and microstructure Binary isomorphous systems (complete solid solubility) Binary eutectic systems (limited

More information

Microstructural Characterization of Ti 20 Zr 20 Cu 40 Ni 20 Metallic Glass

Microstructural Characterization of Ti 20 Zr 20 Cu 40 Ni 20 Metallic Glass Engineering Physics 2018; 2(1): 6-10 http://www.sciencepublishinggroup.com/j/ep doi: 10.11648/j.ep.20180201.12 Microstructural Characterization of Ti 20 Zr 20 Cu 40 Ni 20 Metallic Glass Panugothu Rama

More information

Microstructure and Strength Properties of Austenitic and Ferritic Stainless Steels When Brazed with Ni-Cr-P Amorphous Brazing Foils

Microstructure and Strength Properties of Austenitic and Ferritic Stainless Steels When Brazed with Ni-Cr-P Amorphous Brazing Foils Microstructure and Strength Properties of Austenitic and Ferritic Stainless Steels When Brazed with Ni-Cr-P Amorphous Brazing Foils Eric Theisen and Will Coughlan Metglas, Inc., Conway, SC, USA eric.theisen@metglas.com

More information

PROPERTIES OF MAGNESIUM ALLOYS FOR HYDROGEN STORAGE

PROPERTIES OF MAGNESIUM ALLOYS FOR HYDROGEN STORAGE PROPERTIES OF MAGNESIUM ALLOYS FOR HYDROGEN STORAGE Vítězslav KNOTEK, Václav HOŠEK, Dalibor VOJTĚCH, Pavel NOVÁK, Jan ŠERÁK, Alena MICHALCOVÁ, Filip PRŮŠA, Tomáš POPELA, Michal NOVÁK Department of Metals

More information

PRODUCING MULTILAYER COATINGS BY MECHANICAL ALLOYING METHOD

PRODUCING MULTILAYER COATINGS BY MECHANICAL ALLOYING METHOD PRODUCING MULTILAYER COATINGS BY MECHANICAL ALLOYING METHOD Мazhyn SKAKOV 1, Zhuldyz SAGDOLDINA 2, Marat BITENBAEV 3 1 National Nuclear Center of the Republic of Kazakhstan, Kurchatov, Kazakhstan, skakov@nnc.kz

More information

Effect of Precipitation Hardening on Microstructural Characteristics of 15-5 Ph Steel

Effect of Precipitation Hardening on Microstructural Characteristics of 15-5 Ph Steel International Journal of Engineering Research and Development e-issn: 2278-067X, p-issn: 2278-800X, www.ijerd.com Volume 9, Issue 1 (November 2013), PP. 22-26 Effect of Precipitation Hardening on Microstructural

More information

NICKEL CHROMIUM ALLOYS

NICKEL CHROMIUM ALLOYS NICKEL CHROMIUM AND NICKEL THORIA ALLOYS 1 NICKEL CHROMIUM ALLOYS Two distinct groups of nickel chromium alloys for high temperature uses are as follow. The first group, which includes cast alloys containing

More information

Application of additive technologies for synthesis of titanium alloys of Ti-Al, Ti-Al-Nb systems of elemental powders a

Application of additive technologies for synthesis of titanium alloys of Ti-Al, Ti-Al-Nb systems of elemental powders a Application of additive technologies for synthesis of titanium alloys of Ti-Al, Ti-Al-Nb systems of elemental powders a Alexey Grigoryev 1, Igor Polozov 2, Anatoliy Popovich 2, and Vadim Sufiyarov 2 1

More information

HETEROGENEOUS JOINTS BETWEEN STEEL AND ALUMINIUM MADE BY MODIFIED MIG PROCESS. Aleš FRANC

HETEROGENEOUS JOINTS BETWEEN STEEL AND ALUMINIUM MADE BY MODIFIED MIG PROCESS. Aleš FRANC HETEROGENEOUS JOINTS BETWEEN STEEL AND ALUMINIUM MADE BY MODIFIED MIG PROCESS Aleš FRANC The University of West Bohemia, Univerzitni 8, 306 14 Pilsen, Czech Republic, afranc@kmm.zcu.cz Abstract Metal inert

More information

Austenitic stainless steel, as a corrosion-resistant material,

Austenitic stainless steel, as a corrosion-resistant material, Study on wear resistant cast B-containing 1Cr18Ni9Ti stainless steel *Kuang Jiacai 1, Jiang Zhiqiang 2, 3, Zhang Shiyin 1, Ye Chang 1, and Liu Qicheng 1 (1. Department of Material Science and Engineering,

More information

APPLICATIONS OF Fe-C PHASE DIAGRAM

APPLICATIONS OF Fe-C PHASE DIAGRAM APPLICATIONS OF Fe-C PHASE DIAGRAM KEY POINTS OF Fe-C Diagram Phases: Liquid Fe-Tmin=1148C @ 4.3%C 1394 C

More information

International Journal of Mechanical & Mechatronics Engineering IJMME-IJENS Vol:15 No:04 53

International Journal of Mechanical & Mechatronics Engineering IJMME-IJENS Vol:15 No:04 53 International Journal of Mechanical & Mechatronics Engineering IJMME-IJENS Vol:15 No:04 53 Study Microstructure And Mechanical Properties Of Rapidly Solidified Of Al- By Melt Spinning Technique Dr. Eman

More information

Effect of Electromagnetic Vibrations on Fe-Co-B-Si-Nb Bulk Metallic Glasses

Effect of Electromagnetic Vibrations on Fe-Co-B-Si-Nb Bulk Metallic Glasses Materials Transactions, Vol. 48, No. 1 (2007) pp. 53 to 57 #2007 The Japan Institute of Metals Effect of Electromagnetic Vibrations on Fe-Co-B-Si-Nb Bulk Metallic Glasses Takuya Tamura*, Daisuke Kamikihara,

More information

SiMo Ductile Iron Crystallization Process

SiMo Ductile Iron Crystallization Process A R C H I V E S of F O U N D R Y E N G I N E E R I N G Published quarterly as the organ of the Foundry Commission of the Polish Academy of Sciences ISSN (1897-331) Volume 17 Issue 1/217 147 152 27/1 SiMo

More information

Lecture 11: Metallic Alloys

Lecture 11: Metallic Alloys Part IB Materials Science & Metallurgy H. K. D. H. Bhadeshia Course A, Metals and Alloys Lecture 11: Metallic Alloys TRIP Steels A phase change can do work; a good example of this is how viruses infect

More information

Effect of titanium additions to low carbon, low manganese steels on sulphide precipitation

Effect of titanium additions to low carbon, low manganese steels on sulphide precipitation University of Wollongong Thesis Collections University of Wollongong Thesis Collection University of Wollongong Year 2008 Effect of titanium additions to low carbon, low manganese steels on sulphide precipitation

More information

AN IMPROVEMENT OF CLOSED DIE FORGING OF HIGH STRENGTH STEEL PRODUCTS AND A STUDY OF ITS WELDING SUITABILITY

AN IMPROVEMENT OF CLOSED DIE FORGING OF HIGH STRENGTH STEEL PRODUCTS AND A STUDY OF ITS WELDING SUITABILITY AN IMPROVEMENT OF CLOSED DIE FORGING OF HIGH STRENGTH STEEL PRODUCTS AND A STUDY OF ITS WELDING SUITABILITY Ing. Khodr Ibrahim, West Bohemia University, Univerzitni 8, 306 14 Pilsen Czech Republic ABSTRACT

More information

4.0 Alloying Elements and Microstructural Phases

4.0 Alloying Elements and Microstructural Phases 4.0 Alloying Elements and Microstructural Phases There is a direct link between microstructure and properties and if the microstructure is altered by heat treatment, fabrication or composition then the

More information

SURFACE TREATMENT OF SONOTRODE MATERIAL AW 7075

SURFACE TREATMENT OF SONOTRODE MATERIAL AW 7075 SURFACE TREATMENT OF SONOTRODE MATERIAL AW 7075 EMMER Štefan 1, BAKSA Peter 2, KOVÁČIK Jaroslav 34 Keywords: Electro spark deposition, substrate AW 7075, metal-ceramic functional layers, micro hardness,

More information

Mechanical Characteristics of Hot Extruded Non-Combustible Magnesium Alloy using Water Atomized Powder

Mechanical Characteristics of Hot Extruded Non-Combustible Magnesium Alloy using Water Atomized Powder Mechanical Characteristics of Hot Extruded Non-Combustible Magnesium Alloy using Water Atomized Powder ELSAYED Ayman*, KONDOH Katsuyoshi**, IMAI Hisashi***, UMEDA Junko*** and KAWAKAMI Masashi* Abstract

More information

APLICATION OF THE UNCONVENTIONAL THERMOMECHANICAL TREATMENTON LOW-ALLOYED HIGH-STRENGTH STEEL

APLICATION OF THE UNCONVENTIONAL THERMOMECHANICAL TREATMENTON LOW-ALLOYED HIGH-STRENGTH STEEL APLICATION OF THE UNCONVENTIONAL THERMOMECHANICAL TREATMENTON LOW-ALLOYED HIGH-STRENGTH STEEL Danuše LANGMAJEROVÁ a, Hana JIRKOVÁ a, Šárka MIKMEKOVÁ b, Bohuslav MAŠEK a a University of West Bohemia in

More information

Liquid Solubility of Manganese and Its Influence on Grain Size of Mg-Al Alloys* 1

Liquid Solubility of Manganese and Its Influence on Grain Size of Mg-Al Alloys* 1 Materials Transactions, Vol. 47, No. 8 (2006) pp. 1968 to 1974 #2006 The Japan Institute of Light Metals Liquid Solubility of Manganese and Its Influence on Grain Size of Mg-Al Alloys* 1 Yosuke Tamura,

More information