Threshold stress intensity of hydrogen-induced cracking and stress corrosion cracking of high strength steel

被引：0
作者：
Li, HL [1 ]
Gao, KW
Qiao, LJ
Wang, YB
Chu, WY
Hui, WJ
Dong, H
Weng, YQ
机构：
[1] Univ Sci & Technol Beijing, Beijing 100083, Peoples R China
[2] Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
来源：
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2001年 / 8卷 / 02期
关键词：
high strength steel; stress corrosion; hydrogen induced cracking;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The threshold stress intensity of stress corrosion cracking (SCC) for 40CrMo steel in 3.5 % NaCl solution decreased exponentially with the increase of yield strength. The threshold stress intensity of hydrogen-induced cracking during dynamical charging for 40CrMo steel decreased linearly with the logarithm of the concentration of diffusible hydrogen. This equation was also applicable to SCC of high strength steel in aqueous solution. The critical hydrogen enrichment concentration necessary for SCC of high strength steel in water decreased exponentially with the increase of yield strength. Based oil the results, the relationship but -ween K-ISCC and sigma(ys) could be deduced.
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页码：42 / 46
页数：5
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