Critical role of LUders banding in hydrogen embrittlement susceptibility of medium Mn steels

被引：28

作者：

Zhang, Jun ^{[1
]}

Huang, Mingxin ^{[2
]}

Sun, Binhan ^{[3
]}

Zhang, Boning ^{[1
]}

Ding, Ran ^{[1
]}

Luo, Cheng ^{[4
]}

Zeng, Wu ^{[4
]}

Zhang, Chi ^{[1
]}

Yang, Zhigang ^{[1
]}

van der Zwaag, Sybrand ^{[1
]}

Chen, Hao ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, Key Lab Adv Mat, Minist Educ, Beijing 100084, Peoples R China

[2] Univ Hong Kong, Dept Mech Engn, Hong Kong, Peoples R China

[3] Max Planck Inst Eisenforsch GmbH, Max Planck Str 1, D-40237 Dusseldorf, Germany

[4] Tsinghua Univ, Sch Aerosp Engn, Beijing 100084, Peoples R China

来源：

SCRIPTA MATERIALIA | 2021年 / 190卷

基金：

中国国家自然科学基金; 国家重点研发计划; 北京市自然科学基金;

关键词：

Medium Mn steels; Hydrogen embrittlement; Localized deformation; Martensite transformation; Luders band; COLD-ROLLING REDUCTION; HIGH-STRENGTH STEEL; MECHANICAL-BEHAVIOR; TENSILE PROPERTIES; INDUCED CRACKING; RECENT PROGRESS; MICROSTRUCTURE; RESISTANCE; AUSTENITE; DEFORMATION;

D O I：

10.1016/j.scriptamat.2020.08.025

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of Lfiders banding on hydrogen embrittlement (HE) susceptibility of medium Mn steels was investigated by tuning the degree of yield point elongation (YPE). It was found that the steel with a larger YPE was more susceptible to HE. A larger YPE led to a higher local flow stress and a higher fraction of strain-induced martensite, which in turns resulted in more H-induced cracks in the Lfiders banding area and the consequent catastrophic failure. It thus suggests that Lfiders banding and the associated localized deformation play a key role in influencing the overall HE susceptibility of medium Mn steels. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：32 / 37

页数：6

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