+Advanced Search
Study on the phase transformation behaviour, microstructure and property of NiTi based high temperature shape memory alloys
DOI:
Author:
Affiliation:

Grikin Advanced Materials Co,Ltd,,GRIMED Medical Beijing Co,Ltd,Grikin Advanced Materials Co,Ltd,GRIMED Medical Beijing Co,Ltd,GRIMED Medical Beijing Co,Ltd,Grikin Advanced Materials Co,Ltd,Grikin Advanced Materials Co,Ltd,Grikin Advanced Materials Co,Ltd

Clc Number:

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    Research progress on the Ni-Ti-Pd and Ni-Ti-Pt high temperature shape memory alloys at home and abroad in recent years were reviewed, and the effect of chemical composition, thermal mechanical treatment and the training process on martensitic transformation, high temperature performance of one-way and two-way shape memory effect, and functional stability during repeated thermomechanical cycling of high temperature shape memory alloy were analyzed.The results show that the transformation temperature, the width of transformation hysteresis, high temperature martensitic transformation induced plasticity, creep behaviour, and high temperature thermal cycling properties, were significantly affected by the microstructures.The refinement of grain structure were achieved by the addition of Sc, Cu, or B elements, and cold rolling followed by annealling treatments, and the fine dispersed precipitaties of Ti2Ni and Ti2(Ni,Pd) distributed in the matrix were produced by solid solution and aging, and these microstructures were beneficial to the improvement of the high temperature shape memory properties, by the effect of solid solution hardening and precipitation hardening.The preferentially oriented martensite variants, nucleated on the dislocation arrays with the specific stress field obtained during the training under a constant stress, were found to improve the one-way and two-way shape memory properties, and improve the stability of the functional properties and size of the high temperature shape memory alloys.

    Reference
    Related
    Cited by
Get Citation

[Zhishan Yuan, Dezhi Lin, Yue Cui, Zhaowei Feng, Juntao Li, Zaiyan Shang, Ming Zhu, Xiaodong Xiong, Xingquan Wang. Study on the phase transformation behaviour, microstructure and property of NiTi based high temperature shape memory alloys[J]. Rare Metal Materials and Engineering,2018,47(7):2269~2274.]
DOI:[doi]

Copy
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:July 12,2016
  • Revised:October 20,2016
  • Adopted:November 11,2016
  • Online: October 10,2018
  • Published: