CREEP th International Conference on Creep and Fracture of Engineering Materials and Structures Toulouse, France, May 29 June 05, 2015

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1 CREEP 2015, May 29 - June 05, 2015, Touloue, France CREEP th International Conference on Creep and Fracture of Engineering Material and Structure Touloue, France, May 29 June 05, 2015 Creep and Fracture of Oxide Diperion Hardened Platinum with Improved Strength at High Temperature Bernd Ficher 1), Uwe Jantch 2), Michael Koch 2 ), Stefan Vorberg 2) 1) Ernt-Abbe-Hochchule Jena - Univerity of Applied Science Jena, Germany 2) Heraeu Deutchland GmbH & Co. KG, Hanau, Germany Department SciTec Preciion- Optic-Preciion- Material-Optic- Enviro nmaterial- ment Enviro nment -1-

2 CREEP 2015, May 29 - June 05, 2015, Touloue, France Creep and Fracture of Oxide Diperion Hardened Platinum with Improved Strength at High Temperature Structure: - Application and propertie of platinum tructural material Preciion- Optic- Material- Enviro nment -2-

3 CREEP 2015, May 29 - June 05, 2015, Touloue, France Superior propertie of platinum group metal: Very good chemical tability Oxidation reitance at high temperature Stability againt oxidizing melt Applicability at extremely high temperature near the melting point (1,769 ºC) Adequate mechanical trength at very high temperature Preciion- Optic- Material- Enviro nment -3-

4 CREEP 2015, May 29 - June 05, 2015, Touloue, France Feeder ytem: app. 100 kg Pt-Rh alloy, app. 3 m long Raw gla from refiner Connecting flange for electrical reitance heating up to 1,600 C and more Plunger cell for doing Stirrer cell for homogeniation Forming Preciion- Optic- Material- Enviro nment -4-

5 CREEP 2015, May 29 - June 05, 2015, Touloue, France Stirrer and plunger for the feeder ytem Stirrer for conditioning Plunger for doing Preciion- Optic- Material- Enviro nment -5-

6 CREEP 2015, May 29 - June 05, 2015, Touloue, France Creep and Fracture of Oxide Diperion Hardened Platinum with Improved Strength at High Temperature Structure: - Application and propertie of platinum tructural material - Pt DPH material - Pt DPH - Pt-5%Rh DPH, Pt-10%Rh DPH - Pt-5%Au DPH Preciion- Optic- Material- Enviro nment -6-

7 CREEP 2015, May 29 - June 05, 2015, Touloue, France Optical micrograph howing the tructure of Pt DPH: 100 µm Preciion- Optic- Material- Enviro nment -7-

8 CREEP 2015, May 29 - June 05, 2015, Touloue, France TEM image of Pt DPH (3.5 MPa / 1,600 ºC / 1 h): Photographer: Dr. Rainer Völkl, Univerity of Bayreuth Preciion- Optic- Material- Enviro nment -8-

9 CREEP 2015, May 29 - June 05, 2015, Touloue, France Creep and Fracture of Oxide Diperion Hardened Platinum with Improved Strength at High Temperature Structure: - Application and propertie of platinum tructural material - Pt DPH material - Development of Pt DPH material with improved trength Preciion- Optic- Material- Enviro nment -9-

10 CREEP 2015, May 29 - June 05, 2015, Touloue, France Creep and Fracture of Oxide Diperion Hardened Platinum with Improved Strength at High Temperature Structure: - Application and propertie of platinum tructural material - Pt DPH material - Development of Pt DPH material with improved trength Higher content of oxide diperoid etablihed material Pt-10%Rh DPH app. 1,800 ppm Zr new material Pt-10%Rh DPHh app. 4,000 ppmzr Both material are doped with mall concentration of Y and Sc Modifying proce parameter without a higher content of oxide diperoid Pt-10%RhDPH-A Preciion- Optic- Material- Enviro nment -10-

11 CREEP 2015, May 29 - June 05, 2015, Touloue, France Creep and Fracture of Oxide Diperion Hardened Platinum with Improved Strength at High Temperature Structure: - Application and propertie of platinum tructural material - Pt DPH material - Development of Pt DPH material with improved trength - High temperature mechanical propertie Preciion- Optic- Material- Enviro nment -11-

12 CREEP 2015, May 29 - June 05, 2015, Touloue, France 1,600ºC 10 Pt-10%Rh DPH-A 6.1 Stre-rupture curve of variou platinum material Pt-10%Rh DPHh Stre σ [MPa] Pt-10%Rh DPH Pt-10%Rh Pure-Pt , Rupture time [h] Preciion- Optic- Material- Enviro nment -12-

13 CREEP 2015, May 29 - June 05, 2015, Touloue, France 1E-04 Pt-10%Rh 1,600ºC Pt-10%Rh DPH 1E-05 Pt-10%Rh DPHh Norton Plot of variou platinum material Creep rate ε ε' [1/] 1E-06 Pt-10%Rh DPH-A ε ε = Α σ n ε' = 1E-07σ 3.61 Pt-10%Rh 1E-07 ε ε' = 7E-11σ 5.14 ε ε' = 2E-13σ 6.87 ε ε' = 3E-18σ 11.0 Pt-10%Rh DPH Pt-10%Rh DPHh Pt-10%Rh DPH-A 1E Stre σ [MPa] Preciion- Optic- Material- Enviro nment -13-

14 CREEP 2015, May 29 - June 05, 2015, Touloue, France Pt-10%Rh DPHh / 1,400 ºC / 15.6 MPa / 5.65 hour A = 5.8% ε'= 2.3 E-6 [1/] Preciion- Optic- Material- Enviro nment -14-

15 CREEP 2015, May 29 - June 05, 2015, Touloue, France Stre-train-curve of Pt-10%Rh DPHh at variou temperature Preciion- Optic- Material- Enviro nment -15-

16 CREEP 2015, May 29 - June 05, 2015, Touloue, France High temperature tenile trength, 0.2% yield point of etablihed Pt-10%Rh DPH, new Pt-10%Rh DPHh and Pt-10%Rh DPH-A at variou temperature Preciion- Optic- Material- Enviro nment -16-

17 CREEP 2015, May 29 - June 05, 2015, Touloue, France Failure train of etablihed Pt-10%Rh DPH, new Pt-10%Rh DPHh and Pt-10%Rh DPH-A at variou temperature Preciion- Optic- Material- Enviro nment -17-

18 CREEP 2015, May 29 - June 05, 2015, Touloue, France Creep and Fracture of Oxide Diperion Hardened Platinum with Improved Strength at High Temperature Structure: - Application and propertie of platinum tructural material - Pt DPH material - Development of Pt DPH material with improved trength - High temperature mechanical propertie - Metallographic examination Preciion- Optic- Material- Enviro nment -18-

19 CREEP 2015, May 29 - June 05, 2015, Touloue, France SEM micrograph of the fracture area of Pt-10%Rh DPHh at 1,700 ºC after the hot tenile tet 2mm 50 µm Preciion - Optic - Material Material - Environment 500 µm A = 59 % 10 µm

20 CREEP 2015, May 29 - June 05, 2015, Touloue, France Optical micrograph howing the tructure of Pt-10%Rh DPHh in longitudinal ection 500µ µm initial tate 1,400 ºC 6.5 MPa 750 hour 50µ µm initial tate 50µ µm after creep tet Preciion - Optic - Material Material - Environment

21 CREEP 2015, May 29 - June 05, 2015, Touloue, France Optical micrograph howing the tructure of Pt-10%Rh DPH and Pt-10%Rh DPH-A Pt-10%Rh DPH Pt-10%Rh DPH-A Preciion- Optic- Material- Enviro nment -21-

22 CREEP 2015, May 29 - June 05, 2015, Touloue, France Scanning SIMS micrograph howing the ditribution of variou element in Pt-10%Rh DPHh: Impule count Impule count Impule count Impule count Zr Ditribution Y Ditribution Sc Ditribution O Ditribution Preciion- Optic- Material- Enviro nment -22-

23 CREEP 2015, May 29 - June 05, 2015, Touloue, France Summary: The new Pt DPH material Pt-10%Rh DPHh and Pt-10%Rh DPH-A have an increaed tre-rupture trength and higher form tability than the etablihed material. The quality Pt-10%Rh DPH-A ha the highet creep trength and the bet weldability. The newly developed material (Pt-10%Rh DPHh and Pt-10%Rh DPH-A) can be readily rolled to thin heet and proceed to eamle tube. They have already been implemented into the production. Firt component have been proved in the gla indutry at high mechanical load. Preciion- Optic- Material- Enviro nment -23-

24 CREEP 2015, May 29 - June 05, 2015, Touloue, France Acknowledgement: The author thank the participating co-worker of: Heraeu Deutchland GmbH & Co. KG, Hanau, Germany Heraeutrae 12-14, D Hanau, Germany RTG Microanalyi GmbH, Berlin Schwarzchildtrae 1, D Berlin, Germany Univerity of Applied Science Jena Carl-Zei-Promenade 2, D Jena, Germany Preciion- Optic- Material- Enviro nment -24-

25 CREEP 2015, May 29 - June 05, 2015, Touloue, France Thank you very much for your attention. Correponding author: Bernd Ficher Tel.: (0) bernd.ficher@fh-jena.de Reference: Thi preentation include part of the paper Oxide Diperion Hardened Platinum Alloy with Improved Strength at High Temperature, B. Ficher, U. Jantch, M. Koch, 36 th International Preciou Metal Conference, June 9-12, 2012, La Vega, USA, proceeding, 32 page, edited by IPMI International Preciou Metal Intitute, Penacola, Florida, USA Preciion- Optic- Material- Enviro nment -25-

26 CREEP 2015, May 29 - June 05, 2015, Touloue, France Pt-5%Rh / 1,600 ºC / 3.0 MPa / 4.87 hour A = 47 % ε'= 1.4 E-5 [1/] (Pt-10%Rh DPHh: A = 5.8 %) ε '= 2.3 E-6 [1/] Preciion- Optic- Material- Enviro nment -26-

27 CREEP 2015, May 29 - June 05, 2015, Touloue, France Strength, Deformation and Fracture of Oxide Hardened Platinum Alloy at High Temperature Structure: - Application and propertie of platinum tructural material - Pt DPH material - Equipment for creep and tenile tet at high temperature up to 3,000 ºC Preciion- Optic- Material- Enviro nment -27-

28 CREEP 2015, May 29 - June 05, 2015, Touloue, France Equipment for creep tet up to 3,000 ºC, chematic Ar/H 2 T ample video camera cooling water pyrometer Ar/H 2 copper clamp load tranformer thyritor Ar/H 2 : protective ga atmophere for metal enitive to oxidation oftware: SuperCreep Preciion- Optic- Material- Enviro nment -28-

29 CREEP 2015, May 29 - June 05, 2015, Touloue, France Equipment for high temperature tenile tet up to 3,000 ºC, chematic crohead TIRAtet 2420 Ar/H 2 video camera ample tet chamber pyrometer SuperCreep tranformer thyritor PID TIRAtet - data recording Preciion- Optic- Material- Enviro nment -29-

30 CREEP 2015, May 29 - June 05, 2015, Touloue, France Experimental tet facility tre-rupture tet: Stre-rupture tet: Direct electric current heating IR-pyrometer Computer controlled temperature Temperature range: 750 to 3,000 ºC T pecimen Creep tet: Determination of creep curve by mean of laer interferometer or high reolution camera and the oftware SuperCreep Sample dimenion (laer-machined from heet): Length: 120 mm Width: 4 mm Thickne: 0.8 mm Preciion- Optic- Material- Enviro nment copper clamp -30- laerinterferometer load tranformer thyritor pyrometer

31 CREEP 2015, May 29 - June 05, 2015, Touloue, France Experimental tet facility tenile tet: Tet chamber for tenile tet: Same principle Integrated in a conventional tenile teting machine Sample with houlder Ar H 2 Crohead TIRAtet 2420 Sample Tet chamber Video camera Pyrometer Strain meaurement by uing a high reolution camera and the oftware SuperCreep Tranformer SuperCreep Thyritor PID TIRAtet- Data recording Preciion- Optic- Material- Enviro nment -31-