金属退火硬化现象及机理的研究进展

doi:10.13251/j.issn.0254-6051.2021.09.001

金属热处理 ›› 2021, Vol. 46 ›› Issue (9): 1-6.DOI: 10.13251/j.issn.0254-6051.2021.09.001

• 综述 • 下一篇

金属退火硬化现象及机理的研究进展

吴浩¹, 甘章华¹, 劳文杰², 吴传栋¹, 王佳敏¹, 倪倩¹

1.武汉科技大学省部共建耐火材料与冶金国家重点实验室, 湖北武汉 430081;
2.宝钢股份武钢有限公司设备管理部, 湖北武汉 430080

收稿日期:2021-03-06 出版日期:2021-09-25 发布日期:2021-12-09
通讯作者: 甘章华,教授,博士,E-mail:13975738@qq.com
作者简介:吴浩(1996—),男,硕士研究生,主要研究方向为铜镍硅合金,E-mail:1162632019@qq.com。
基金资助:
国家自然科学基金(51904213);中国博士后科学基金(2018M642930)

Research progress on hardening effect and mechanism during annealing of metals

Wu Hao¹, Gan Zhanghua¹, Lao Wenjie², Wu Chuandong¹, Wang Jiamin¹, Ni Qian¹

1. Key Laboratory of Refractories and Metallurgy of Wuhan University of Science and Technology, Wuhan Hubei 430081, China;
2. Facility Management Department, Baosteel Wuhan Iron and Steel Co., Ltd., Wuhan Hubei 430080, China

Received:2021-03-06 Online:2021-09-25 Published:2021-12-09

摘要/Abstract

摘要： 通常金属进行退火时都会发生软化现象,而对于一些特殊的金属或者合金,将出现退火硬化的反常现象。对纯金属、铜合金、镍钨合金、锌铝合金和铝合金等体系中退火硬化现象及机理进行了总结与分析。铝钪、铝镱和铝锆系合金中存在铸态直接退火硬化现象,而其它合金体系需要进行冷变形才会出现退火硬化现象。退火硬化的机理主要包括:晶界溶质偏析、晶界弛豫、第二相颗粒的晶界钉扎、位错源限制硬化、溶质偏析对孪晶边界迁移或位错滑动的钉扎效应、退火孪晶、第二相纳米粒子强化等。

关键词: 退火硬化, 硬化机理, 铸造合金, 塑性变形

Abstract: Softening of metals could be achieved during annealing, generally. However, for several specific metals or alloys, the abnormal phenomenon of annealing hardening occurred. The phenomenon and mechanism of hardening effect during annealing in pure metal, Cu alloy, Ni-W alloy, Zn-Al alloy and Al alloy were summarized. It was noted that the annealing hardening could be detected for the as-cast Al-Sc, Al-Yt and Al-Zr alloys, while cold deformation was necessary for the other types of alloys to obtain the annealing hardening. The mechanisms of annealing hardening were summarized as follows, including solute segregation on grain boundary, grain boundary relaxation, grain boundary nailing of the second phase particles, dislocation source-limited hardening, pinning effect of segregated solute atoms on twin boundary migration or dislocation sliding, annealing twins and strengthening of the second phase nanoparticles, etc.

Key words: annealing hardening, hardening mechanism, cast alloy, plastic deformation

中图分类号:

TG156.2

吴浩, 甘章华, 劳文杰, 吴传栋, 王佳敏, 倪倩. 金属退火硬化现象及机理的研究进展[J]. 金属热处理, 2021, 46(9): 1-6.

Wu Hao, Gan Zhanghua, Lao Wenjie, Wu Chuandong, Wang Jiamin, Ni Qian. Research progress on hardening effect and mechanism during annealing of metals[J]. Heat Treatment of Metals, 2021, 46(9): 1-6.

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金属退火硬化现象及机理的研究进展

Research progress on hardening effect and mechanism during annealing of metals

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