Hydrogen influence on some advanced high-strength steels

被引：96
作者：
Liu, Qinglong [1 ]
Zhou, Qingjun [2 ]
Venezuela, Jeffrey [1 ]
Zhang, Mingxing [1 ]
Atrens, Andrej [1 ]
机构：
[1] Univ Queensland, Sch Min & Mech Engn, Div Mat, St Lucia, Qld 4072, Australia
[2] Baoshan Iron & Steel Co Ltd, Res Inst, Shanghai 201900, Peoples R China
来源：
CORROSION SCIENCE | 2017年 / 125卷
关键词：
Advanced high strength steel; SEM; Hydrogen embrittlement; ASSISTED MULTIPHASE STEELS; INCREASING STRESS TEST; EMBRITTLEMENT SUSCEPTIBILITY; INDUCED CRACKING; MECHANICAL-PROPERTIES; MULTISCALE MECHANICS; LOCALIZED PLASTICITY; FRACTURE PROPERTIES; RETAINED AUSTENITE; DELAYED FRACTURE;
D O I：
10.1016/j.corsci.2017.06.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper studied the influence of hydrogen on some dual-phase (DP), quenching and partitioning (Q &P), and twinning-induced plasticity (TWIP) advanced high-strength steels (AHSS). All steels exhibited hydrogen sensitivity, manifested by (i) decreased yield strength (by a maximum of 13%) attributed to solid-solution softening by hydrogen, and (ii) reduced ductility (maximum decrease of reduction of area was from 65% to 9%), caused by hydrogen assisted fracture processes after the onset of necking. There was no sub-critical crack growth below the ultimate tensile strength. The hydrogen influence increased with increasing strength, more negative charging potential, and decreasing stress rate.
引用
收藏
页码：114 / 138
页数：25
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