袁志山,吝德智,崔跃,冯昭伟,李君涛,尚再艳,朱明,熊晓东,王兴权.NiTi基高温记忆合金相变行为与组织性能研究[J].稀有金属材料与工程,2018,47(7):2269~2274.[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.]
NiTi基高温记忆合金相变行为与组织性能研究
投稿时间:2016-07-12  修订日期:2016-10-20
中文关键词:  高温记忆合金  镍钛形状记忆合金  Ni-Ti-Pd  Ni-Ti-Pt  双程记忆效应  热机械处理  马氏体相变
基金项目:2015年工业转型升级强基工程资金资助(项目名称:高性能形状记忆合金及智能材料,项目编号TC150B5C0/03)
中文摘要:
      本文总结了近年来国内外Ni-Ti-Pd和Ni-Ti-Pt高温镍钛形状记忆合金研究进展,分析了化学成分、热机械处理和训练工艺等对高温记忆合金的马氏体相变行为、高温单程和双程记忆性能和循环使用性能稳定性等方面的影响。研究结果表明,Ni-Ti-Pd和Ni-Ti-Pt高温镍钛形状记忆合金的相变温度、滞后宽度、高温马氏体变形与蠕变行为、高温循环特性等受显微组织影响显著。通过采取Sc、B、Cu等元素合金化、固溶和时效、冷轧退火处理,有利于细化晶粒,在基体析出细小弥散沉淀相,如Ti2Ni 和Ti2(Ni,Pd)等,起到固溶强化和沉淀强化作用,改善高温记忆合金高温记忆性能。在一定应力条件下训练处理在基体形成具有特定应力场位错组态易于诱发择优取向的马氏体变体形核,从而提高高温单程和双程记忆性能和功能尺寸稳定性。
Study on the phase transformation behaviour, microstructure and property of NiTi based high temperature shape memory alloys
英文关键词:High temperature shape memory alloy  NiTi shape memory alloy  Ni-Ti-Pd  Ni-Ti-Pt  two-way shape memory effect  thermal mechanical treatment  martensitic transformation.
英文摘要:
      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.
作者单位E-mail
袁志山 有研亿金新材料有限公司 yuanzs@163.com 
吝德智 有研医疗器械(北京)有限公司  
崔跃 有研医疗器械(北京)有限公司  
冯昭伟 有研亿金新材料有限公司  
李君涛 有研医疗器械(北京)有限公司  
尚再艳 有研医疗器械(北京)有限公司  
朱明 有研亿金新材料有限公司  
熊晓东 有研亿金新材料有限公司  
王兴权 有研亿金新材料有限公司  
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