Enhancing the hydrogen embrittlement resistance with cementite/VC multiple precipitates in high-strength steel

被引：5
|
作者：
Shi, Rongjian [1 ]
Wang, Yanlin [1 ]
Lu, Supeng [1 ]
Liu, Saiyu [1 ]
Tu, Yanqi [1 ]
Yang, Shani [1 ]
Gao, Kewei [1 ]
Yang, Xu-Sheng [3 ]
Pang, Xiaolu [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China
[3] Hong Kong Polytech Univ, Res Inst Adv Mfg, Dept Ind & Syst Engn, Hung Hom,Kowloon, Hong Kong, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2023年 / 874卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Hydrogen embrittlement; Hydrogen trapping; Multiple precipitates; Carbides; High-strength steel; INDUCED DUCTILITY LOSS; ULTRA-HIGH-STRENGTH; LOW-CARBON; MECHANICAL-PROPERTIES; LOCALIZED PLASTICITY; ATOMIC-SCALE; MICROSTRUCTURE; BEHAVIOR; PARTICLES; EVOLUTION;
D O I：
10.1016/j.msea.2023.145084
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The superior hydrogen embrittlement (HE) resistance and satisfied work hardening capacity are achieved in high-strength spring steel after hydrogen pre-charging with dispersed multiple precipitates via the multi-microalloying of 1.04 wt% Cr and 0.14 wt% V. The precipitates are determined to be the triplex microstruc-tures, i.e., the isolated (Mn, Cr, V)-enriched cementite, isolated V-enriched VC, and the co-precipitation of cementite and VC. These multiple precipitates could act as the effective hydrogen traps to achieve more potent irreversible hydrogen trapping capacity, thus inhibiting the HE susceptibility by-23%. Hence, the strategy of cementite/VC multiple precipitates is beneficial in designing the high-strength and HE-resistant automotive steels.
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页数：12
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