J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (03): 359-362.

• Research Articles • Previous Articles     Next Articles

Martensite aging effect and thermal cyclic characteristics in Ti-Pd and Ti-Pd-Ni high temperature shape memory alloys

Wei Cai, Kazuhiro Otsuka   

  1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China...
  • Received:2000-06-05 Revised:1900-01-01 Online:2001-05-28 Published:2009-10-10
  • Contact: Wei Cai

Abstract: The effect of thermal cycling and aging in martensitic state in Ti-Pd-Ni alloys were investigated by DSC and TEM observations. It is shown that the thermal cycling causes the decreases in M, and Af temperatures in Ti50Pd50-xNix (x=10, 20, 30) alloys, but no obvious thermal cycling effect was observed in Ti50Pd50Pd40Ni10 alloys and the aging effect shows a curious feature, i.e., the Af temperature does not saturate even after relatively long time aging, which is considered to be due to the occurrence of recovery recrystallization during aging.

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