Al含量和显微组织对高强钢氢脆敏感性的影响

doi:10.13251/j.issn.0254-6051.2025.07.014

金属热处理 ›› 2025, Vol. 50 ›› Issue (7): 96-102.DOI: 10.13251/j.issn.0254-6051.2025.07.014

Al含量和显微组织对高强钢氢脆敏感性的影响

李硕妍¹, 李晓峰², 张玉鹏¹, 张震¹, 郑春雷¹, 吕博³

1.燕山大学材料科学与工程学院, 河北秦皇岛 066004;
2.山东工程机械股份有限公司, 山东济宁 272073;
3.燕山大学环境与化学工程学院, 河北秦皇岛 066004

收稿日期:2025-01-20 修回日期:2025-05-07 出版日期:2025-07-25 发布日期:2025-07-28
通讯作者: 郑春雷,副研究员,E-mail:zhengclysu@ysu.edu.cn
作者简介:李硕妍(1998—),女,硕士研究生,主要研究方向为金属氢扩散及第一性原理计算,E-mail:1584513218@qq.com。

Effect of Al content and microstructure on hydrogen embrittlement susceptibility of high-strength steel

Li Shuoyan¹, Li Xiaofeng², Zhang Yupeng¹, Zhang Zhen¹, Zheng Chunlei¹, Lü Bo³

1. School of Materials Science and Engineering, Yanshan University, Qinhuangdao Hebei 066004, China;
2. Shandong Construction Machinery Co., Ltd., Jining Shandong 272073, China;
3. School of Environmental and Chemistry Engineering, Yanshan University, Qinhuangdao Hebei 066004, China

Received:2025-01-20 Revised:2025-05-07 Online:2025-07-25 Published:2025-07-28

摘要/Abstract

摘要： 通过电化学充氢、慢拉伸试验、XRD、扫描电镜观察等表征方法,研究了含Al及不含Al贝氏体钢和相同成分的马氏体钢的氢脆敏感性。结果表明,随着充氢时间的增加,试验钢的氢脆敏感性均增大;贝氏体钢中,Al的加入,提高了试验钢的伸长率,降低了氢脆敏感性;马氏体钢中,Al的加入,也提高了试验钢的伸长率,但氢脆敏感性增加,原因是由于Al提高了马氏体相变温度,最终导致残留奥氏体含量减少,氢脆敏感性增加。

关键词: 高强钢, 铝, 贝氏体, 马氏体, 电解充氢, 氢脆敏感性

Abstract: Hydrogen embrittlement susceptibility of steels with or without Al in both the bainitic and martensitic states was studied through characterization methods such as electrochemical hydrogen charging, slow tensile testing, X-ray diffraction(XRD), and scanning electron microscope(SEM) observation. The results show that with the increase of hydrogen charging, the hydrogen embrittlement susceptibility of all the tested steels increases. In the bainitic steel, the addition of Al improves the elongation of the tested steels and reduces the hydrogen embrittlement susceptibility. In the martensitic steel, the addition of Al also improves the elongation, but the hydrogen embrittlement susceptibility increases. This is because Al raises the martensitic transformation temperature, which ultimately leads to a reduction in the content of retained austenite and an increase in hydrogen embrittlement susceptibility.

Key words: high-strength steel, aluminium, bainite, martensite, electrolytic hydrogen charging, hydrogen embrittlement susceptibility

中图分类号:

TG142.1

李硕妍, 李晓峰, 张玉鹏, 张震, 郑春雷, 吕博. Al含量和显微组织对高强钢氢脆敏感性的影响[J]. 金属热处理, 2025, 50(7): 96-102.

Li Shuoyan, Li Xiaofeng, Zhang Yupeng, Zhang Zhen, Zheng Chunlei, Lü Bo. Effect of Al content and microstructure on hydrogen embrittlement susceptibility of high-strength steel[J]. Heat Treatment of Metals, 2025, 50(7): 96-102.

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Al含量和显微组织对高强钢氢脆敏感性的影响

Effect of Al content and microstructure on hydrogen embrittlement susceptibility of high-strength steel

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