Effect of the segregation band on the hydrogen embrittlement susceptibility of quenched and partitioned steel

被引：28
作者：
Li, Weiguo [1 ]
Zhou, Qingjun [2 ]
Wu, Weijie [1 ]
Tong, Yaxing [1 ]
Li, Jinxu [1 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Corros & Protect Ctr, Beijing 100083, Peoples R China
[2] Baoshan Iron & Steel Co Ltd, Res Inst, Shanghai 201900, Peoples R China
来源：
CORROSION SCIENCE | 2023年 / 222卷
基金：
中国国家自然科学基金;
关键词：
Segregation band; Hydrogen embrittlement; Hydrogen microprinting; QP1180; MICROPRINT TECHNIQUE; MN SEGREGATION; TRIP STEELS; PROPERTY;
D O I：
10.1016/j.corsci.2023.111436
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, the effect of segregation bands on the hydrogen embrittlement susceptibility of QP1180 was examined by slow strain rate tensile tests, and it was shown that almost all hydrogen-induced cracks originated at the segregation bands, which eventually led to the fracture. In addition, the hydrogen distribution characteristic of QP1180 was also visualized by hydrogen microprinting tests, showing that the local hydrogen concentration of QP1180 is as follows: Segregation band > Retained austenite > Prior austenite grain boundaries > Block boundaries > Martensite > Ferrite.
引用
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页数：8
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