敏化处理对不同状态304奥氏体不锈钢氢脆敏感性的影响

doi:10.13251/j.issn.0254-6051.2021.08.030

金属热处理 ›› 2021, Vol. 46 ›› Issue (8): 164-169.DOI: 10.13251/j.issn.0254-6051.2021.08.030

敏化处理对不同状态304奥氏体不锈钢氢脆敏感性的影响

张慧云^1,2, 孟宪明¹, 郑留伟^2,3, 梁伟^2,3

1.山西工程职业学院机械制造工程系, 山西太原 030009;
2.太原理工大学材料科学与工程学院, 山西太原 030024;
3.太原理工大学分析测试中心, 山西太原 030024

收稿日期:2021-03-28 出版日期:2021-08-25 发布日期:2021-12-09
作者简介:张慧云(1987—),女,讲师,博士研究生,主要研究方向为钢的氢脆性,E-mail:245883278@qq.com
基金资助:
山西省高等学校科技创新项目(2019L0994);山西工程职业学院重点课题(KYF-201902)

Effect of sensitization on hydrogen embrittlement sensitivity of 304 austenitic stainless steel in different states

Zhang Huiyun^1,2, Meng Xianming¹, Zheng Liuwei^2,3, Liang Wei^2,3

1. Department of Mechanical Manufacturing Engineering, Shanxi Engineering Vocational College, Taiyuan Shanxi 030009, China;
2. School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan Shanxi 030024, China;
3. Instrumental Analysis Center, Taiyuan University of Technology, Taiyuan Shanxi 030024, China

Received:2021-03-28 Online:2021-08-25 Published:2021-12-09

摘要/Abstract

摘要： 研究固溶态和冷轧态304奥氏体不锈钢分别在650 ℃敏化2 h和24 h后的氢脆敏感性。结果表明:冷轧态与固溶态相比,因产生了应变诱导马氏体,氢脆敏感性增加;敏化处理会增加固溶态试验钢的氢脆敏感性,敏化时间越长,氢脆敏感性越高;相反,冷轧态试验钢在高温敏化时马氏体部分逆相变成奥氏体,会在一定程度上降低试验钢的氢脆敏感性,敏化时间越长,氢脆敏感性越低。

关键词: 304奥氏体不锈钢, 固溶处理, 冷轧, 敏化, 氢脆敏感性

Abstract: Hydrogen embrittlement sensitivity of the solid solution treated and cold rolled 304 austenitic stainless steels after sensitization treating at 650 ℃ for 2 h and 24 h respectively was studied. The results show that compared with that of the solid solution treated state, the hydrogen embrittlement sensitivity of the steel in cold-rolled state increases due to strain-induced martensite. Sensitization treatment increases the hydrogen embrittlement sensitivity of the solid solution treated steel. The longer the sensitization time is, the higher the hydrogen embrittlement sensitivity is. On the contrary, in the steel in cold-rolled state, the martensite is partially transformed into austenite during high temperature sensitization, which reduces the hydrogen embrittlement sensitivity of the tested steel to a certain extent. The longer the sensitization time is, the lower the hydrogen embrittlement sensitivity is.

Key words: 304 austenitic stainless steel, solid solution treatment, cold rolling, sensitization, hydrogen embrittlement sensitivity

中图分类号:

张慧云, 孟宪明, 郑留伟, 梁伟. 敏化处理对不同状态304奥氏体不锈钢氢脆敏感性的影响[J]. 金属热处理, 2021, 46(8): 164-169.

Zhang Huiyun, Meng Xianming, Zheng Liuwei, Liang Wei. Effect of sensitization on hydrogen embrittlement sensitivity of 304 austenitic stainless steel in different states[J]. Heat Treatment of Metals, 2021, 46(8): 164-169.

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敏化处理对不同状态304奥氏体不锈钢氢脆敏感性的影响

Effect of sensitization on hydrogen embrittlement sensitivity of 304 austenitic stainless steel in different states

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