金属热处理 ›› 2021, Vol. 46 ›› Issue (6): 1-7.DOI: 10.13251/j.issn.0254-6051.2021.06.001

• 轴承 •    下一篇

航天轴承新贵:60NiTi合金

张家华1, 肖飞1, 王建中2, 徐中均2, 金学军1   

  1. 1.上海交通大学 材料科学与工程学院, 上海 200240;
    2.四川中雅科技有限公司, 四川 雅安 625000
  • 收稿日期:2021-02-22 出版日期:2021-06-25 发布日期:2021-07-21
  • 通讯作者: 肖 飞,副教授,博士,E-mail:xfei@sjtu.edu.cn
  • 作者简介:张家华(1997—),男,硕士研究生,主要研究方向为镍钛形状记忆合金,E-mail:zhangjiahua@sjtu.edu.cn。
  • 基金资助:
    国家自然科学基金(51871151,52022055,52031005);上海市自然科学基金(20ZR1428800)

New material for aerospace bearing:60NiTi alloy

Zhang Jiahua1, Xiao Fei1, Wang Jianzhong2, Xu Zhongjun2, Jin Xuejun1   

  1. 1. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. Sichuan Zhongya Technology Co., Ltd., Yaan Sichuan 625000, China
  • Received:2021-02-22 Online:2021-06-25 Published:2021-07-21

摘要: 在NiTi系合金大家族中,等原子比的NiTi合金具有形状记忆效应和超弹性。相比于等原子比NiTi合金,60NiTi合金不会发生热弹性马氏体相变,不具有形状记忆效应和超弹性,但是它在硬度、耐腐蚀性和弹性性能等方面具有出众的潜能,在航天领域上展现了良好的应用前景。固溶态60NiTi合金同时具备结构稳定性、超强的耐腐蚀性、出色的耐磨性,已成为航天轴承候选新材料。

关键词: 60NiTi合金, 耐磨性, 耐腐蚀性, 航天轴承

Abstract: Among the large family of NiTi alloys, the NiTi alloy with equal atomic ratio have shape memory effect and super elasticity, Compared with NiTi alloy, thermoelastic martensitic transformation does not occur in the 60NiTi alloy, and it has no shape memory effect and super elasticity. However it has outstanding potential in hardness, corrosion resistance and elastic properties, showing a good application prospect in the aerospace field. The solid solution treated 60NiTi alloy also has structural stability, super corrosion resistance and excellent wear resistance, and has become a candidate new material for aerospace bearings.

Key words: 60NiTi alloy, wear resistance, corrosion resistance, aerospace bearing

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