Effect of pre-strain on hydrogen-induced delayed cracking and hydrogen trapping behavior in high-strength martensitic steels

被引：0

作者：

Li, Weiguo ^{[1
]}

Cao, Zhongqian ^{[1
]}

Yang, Zixuan ^{[2
]}

Zhou, Qingjun ^{[3
]}

Li, Jinxu ^{[1
,4
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Corros & Protect Ctr, Beijing 100083, Peoples R China

[2] Ningbo Univ, Zhejiang Prov Engn Res Ctr Safety Pressure Vessel, Ningbo 315211, Peoples R China

[3] Baoshan Iron & Steel Co Ltd, Cent Res Inst, Shanghai 201900, Peoples R China

[4] Univ Sci & Technol Beijing, State Key Lab Nucl Power Safety Technol & Equipmen, Beijing 100083, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 91卷

关键词：

Advanced high-strength steels; Hydrogen-induced delayed cracking; Pre-strain; Hydrogen trap; Hydrogen distribution; FRACTURE SUSCEPTIBILITY; MECHANICAL-PROPERTIES; EMBRITTLEMENT; OPPORTUNITIES; DIFFUSION;

D O I：

10.1016/j.ijhydene.2024.10.170

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pre-strain is a key factor affecting the critical conditions for hydrogen-induced delayed cracking (HIDC). In this study, the threshold stress and critical hydrogen concentration for HIDC of MS1300 and MS1500 steels with different pre-strains were measured by constant load tensile (CLT) tests. The results demonstrated that although MS1500 has higher strength, its safe service strength is lower than that of MS1300 when the hydrogen content exceeds 0.5 wppm. Additionally, the hydrogen penetration, thermal desorption spectroscopy, and hydrogen microprinting methods were also used to analyze the hydrogen-induced failure mechanism. These studies provide an effective data reference for improving the industrial production process.

引用

页码：470 / 487

页数：18

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