Hydrogen transport and embrittlement in 300 M and AerMet100 ultra high strength steels

被引：101

作者：

Figueroa, D. ^{[1
]}

Robinson, M. J. ^{[1
]}

机构：

[1] Cranfield Univ, Sch Appl Sci, Bedford, England

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 05期

关键词：

Steel; Hydrogen permeation; Galvanostatic; Hydrogen embrittlement; STRESS-CORROSION CRACKING; RE-EMBRITTLEMENT; DIFFUSIVITY;

D O I：

10.1016/j.corsci.2010.01.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper describes how hydrogen transport affects the severity of hydrogen embrittlement in 300 M and AerMet100 ultra high strength steels. Slow strain rate tests were carried out on specimens coated with electrodeposited cadmium and aluminium-based SermeTel 1140/962. Hydrogen diffusivities were measured using two-cell permeation and galvanostatic charging methods and values of 8.0 x 10(-8) and 1.0 x 10(-9) cm(2) s(-1) were obtained for 300 M and AerMet100, respectively. A two-dimensional diffusion model was used to predict the hydrogen distributions in the SSR specimens at the time of failure. The superior embrittlement resistance of AerMet100 was attributed to reverted austenite forming around martensite laths during tempering. (C) 2010 Elsevier Ltd. All rights reserved..

引用

页码：1593 / 1602

页数：10

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