Paper Title:
High-Temperature Shape Memory Effect of Ti-(Pt,Ir)
  Abstract

Shape recovery and superelasticity of Ti-50at%Pt and Ti-50at%(Pt, Ir), whose martensitic transformation temperature are above 1273 K, were investigated by thermal expansion measurement in dilatometer and loading-unloading compression test. The shape recovery was found in all compounds in at least one of the testing methods. The highest shape recovery, about 4% was found in Ti-25Pt-25Ir using loading-unloading compression test. On the other hand, superelasticity was found in only ternary compounds. Larger superelasticity was observed in ternary compounds with higher Ir contents. Potential of Ti-50Pt and Ti-50(Pt, Ir) as high-temperature shape memory alloys is discussed.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
3273-3278
DOI
10.4028/www.scientific.net/MSF.539-543.3273
Citation
Y. Yamabe-Mitarai, T. Hara, S. Miura, H. Hosoda, "High-Temperature Shape Memory Effect of Ti-(Pt,Ir)", Materials Science Forum, Vols. 539-543, pp. 3273-3278, 2007
Online since
March 2007
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