Hydrogen-assisted fatigue crack growth of AISI 316L stainless steel weld

被引：43
作者：
Tsay, L. W. [1 ]
Chen, J. J. [1 ]
Huang, J. C. [2 ]
机构：
[1] Natl Taiwan Ocean Univ, Inst Mat Engn, Chilung 202, Taiwan
[2] Muzha Vocat High Sch, Sect Machinery, Taipei, Taiwan
来源：
CORROSION SCIENCE | 2008年 / 50卷 / 11期
关键词：
Stainless steel; Hydrogen embrittlement; Welding;
D O I：
10.1016/j.corsci.2008.08.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fatigue crack growth behaviors of AISI 316L stainless steel (SS) welds in air and gaseous hydrogen were evaluated, and further compared with the base plate. In air, the fatigue crack growth rate (FCGR) of the weld after heat-treatment at 1050 degrees C/1 h was similar to that of the base metal. Furthermore, all specimens became susceptible to hydrogen-accelerated crack growth. Mainly quasi-cleavage fracture related with the strain-induced martensite accounted for the accelerated crack growth in hydrogen. A smaller amount of martensite in the weld was responsible for the decreased susceptibility to hydrogen-enhanced fatigue crack growth relative to the base metal. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2973 / 2980
页数：8
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