金属热处理 ›› 2020, Vol. 45 ›› Issue (6): 185-188.DOI: 10.13251/j.issn.0254-6051.2020.06.038

• 材料研究 • 上一篇    下一篇

Cu元素在二元等原子比合金中的扩散现象

王梓1, 张伟强1, 付华萌2   

  1. 1. 沈阳理工大学 材料科学与工程学院, 辽宁 沈阳 110159;
    2. 中国科学院 金属研究所, 辽宁 沈阳 110016
  • 收稿日期:2019-12-16 出版日期:2020-06-25 发布日期:2020-09-02
  • 通讯作者: 张伟强,教授,E-mail: ln-zwq@126.com
  • 作者简介:王 梓(1994—),男,硕士研究生,主要研究方向为合金扩散,E-mail:1215168287@qq.com。
  • 基金资助:
    辽宁省自然科学基金(20180551009)

Diffusion phenomena of Cu in binary alloys with equal atomic ratio

Wang Zi1, Zhang Weiqiang1, Fu Huameng2   

  1. 1. School of Materials Science and Engineering, Shenyang Ligong University, Shenyang Liaoning 110159, China;
    2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang Liaoning 110016, China
  • Received:2019-12-16 Online:2020-06-25 Published:2020-09-02

摘要: 研究了Cu50Ni50、Cu50Co50、Fe50Ni50、Fe50Cr50 4种二元等原子比合金在镀铜并经850 ℃×10 h扩散处理后扩散层的显微组织及成分分布。结果表明,经过850 ℃×10 h扩散处理后,在Cu50Ni50等原子比合金中,由于适配空位的存在,Ni元素与Cu元素之间发生了明显的互扩散,并且Cu元素往往在晶界处发生互扩散;在Cu-Fe50Ni50扩散偶中,Cu元素和Fe元素之间发生了互扩散;但是在Cu-Fe50Cr50和Cu-Cu50Co50扩散偶中,各个元素均没有发生扩散。

关键词: 二元等原子比合金, 互扩散, 适配空位

Abstract: Microstructure and composition distribution of diffusion layer of four binary equal atomic alloys, Cu50Ni50, Cu50Co50, Fe50Ni50 and Fe50Cr50, after copper plating and diffusion at 850 ℃ for 10 h, were studied. The results show that after diffusion treatment at 850 ℃ for 10 h, there is obvious mutual diffusion between Ni atom and Cu atom due to the existence of suitable vacancies in Cu50Ni50 alloy, and the mutual diffusion between Cu atom and Fe atom often occurs at grain boundary. In the diffusion couple of Cu-Fe50Ni50, there is mutual diffusion between Cu atom and Fe atom. In Cu-Fe50Cr50 and Cu-Cu50Co50 diffusion couple, no atoms diffuse.

Key words: binary equal atomic alloy, mutual diffusion, suitable vacancies

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