ESTIMATION OF DELAYED FRACTURE PROPERTY OF STEELS

被引:60
作者
SUZUKI, N
ISHII, N
MIYAGAWA, T
HARADA, H
机构
[1] NIPPON STEEL CORP LTD,R&D LABS 2,KITAKYUSHU 805,JAPAN
[2] NIPPON STEEL CORP LTD,DIV BAR SHAPE & WIRE ROD TECH,CHIYODA KU,TOKYO 10071,JAPAN
来源
TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 1993年 / 79卷 / 02期
关键词
HYDROGEN MEASUREMENT; DELAYED FRACTURE ESTIMATION; CRITICAL HYDROGEN LEVEL;
D O I
10.2355/tetsutohagane1955.79.2_227
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
A new testing method was developed which enables to quantify minute amount of hydrogen in steel and measure resistance of steel to delayed fracture. This method clarified a steel had critical hydrogen level (H(T)) for delayed fracture under a constant applied load. Based on this testing method, a new approach for estimating delayed fracture of steel in service was proposed. From the value of H(T) obtained by this testing method, together with amount of hydrogen absorbed in the steel in a service environment, which is measured by a hydrogen monitoring device, delayed fracture of steel in service can be estimated.
引用
收藏
页码:227 / 232
页数:6
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