Role of γ′ characteristic on the hydrogen embrittlement susceptibility of Fe-Ni-Cr alloys

被引：26

作者：

Chen, Shenghu ^{[1
]}

Zhao, Mingjiu ^{[1
]}

Rong, Lijian ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China

来源：

CORROSION SCIENCE | 2015年 / 101卷

基金：

中国国家自然科学基金;

关键词：

Alloy; SEM; TEM; Hardening; Hydrogen embrittlement; AUSTENITIC STAINLESS-STEELS; FATIGUE-CRACK GROWTH; BASE ALLOYS; DIFFUSION; BEHAVIOR; DEFORMATION; SUPERALLOYS; NICKEL; FRACTURE; TENSILE;

D O I：

10.1016/j.corsci.2015.09.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of gamma' characteristic on the hydrogen embrittlement (HE) susceptibility was investigated in Fe-Ni-Cr alloys with respect to gamma' amount and antiphase boundary (APB) energy. Tensile results revealed that HE susceptibility would increase with an increase in the gamma' amount or APB energy. Fractographic analysis showed that an increase in gamma' amount enhances the frequency of intergranular cracking while the fracture mode changed from intergranular fracture to transgranular fracture with increasing APB energy. The hydrogen induced cracking mechanism is attributed to that APB energy has a greater effect on the degree of planar slip than the gamma amount. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：75 / 83

页数：9

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