Improved resistance to hydrogen embrittlement in a high-strength steel by quenching-partitioning-tempering treatment

被引：104
|
作者：
Zhu, Xu [1 ,2 ]
Li, Wei [2 ]
Hsu, T. Y. [2 ]
Zhou, Shu [3 ]
Wang, Li [3 ]
Jin, Xuejun [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Inst Adv Steels & Mat, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
[3] Baosteel Res Inst, State Key Lab Dev & Applicat Technol Automot Stee, Shanghai 201900, Peoples R China
来源：
SCRIPTA MATERIALIA | 2015年 / 97卷
基金：
中国国家自然科学基金;
关键词：
Quenching-partitioning-tempering (Q-P-T); Hydrogen embrittlement; epsilon-Carbide; Hydrogen trapping; Three-dimensional atom probe (3DAP); TRAPPING SITES; ATOM-PROBE; QUANTITATIVE-ANALYSIS; INDUCED CRACKING; PRECIPITATION; CARBON; DEFORMATION; DEGRADATION; FRACTURE; FE;
D O I：
10.1016/j.scriptamat.2014.10.030
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of epsilon-carbide on hydrogen embrittlement (HE) susceptibility was evaluated in a quenching partitioning tempering (Q-P-T) treated steel. Total elongation loss (1 min hydrogen charging) drops from 42.7% to 0.6% after the tempering treatment. A significant improvement to HE is associated with the trapping capacity of epsilon-carbide, which is revealed by thermal desorption spectroscopy analysis and three-dimensional atom probe. A possible mechanism is discussed to explain the improved resistance to HE. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：21 / 24
页数：4
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