Effect of microstructure on hydrogen embrittlement of various stainless steels

被引：66
作者：
Lai, C. L. [1 ]
Tsay, L. W. [2 ]
Chen, C. [3 ]
机构：
[1] Inst Nucl Energy Res, Tao Yuan 325, Taiwan
[2] Natl Taiwan Ocean Univ, Inst Mat Engn, Keelung 202, Taiwan
[3] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 106, Taiwan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 584卷
关键词：
Stainless steels; Hydrogen embrittlement; Microstructure; Strain-induced; alpha '-martensite; FATIGUE-CRACK GROWTH; STRESS-CORROSION CRACKING; STRAIN-INDUCED MARTENSITE; EPSILON-MARTENSITE; AUSTENITIC STEELS; BEHAVIOR; 304-STAINLESS-STEEL; DEFORMATION; ENVIRONMENT; TEMPERATURES;
D O I：
10.1016/j.msea.2013.07.004
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This work investigated the effect of microstructure on the susceptibility of 304L (metastable), 310S (stable) austenitic and 410 martensitic stainless steels (SSs) to hydrogen embrittlement (HE). Slow-displacement-rate notched tensile tests were performed at various combinations of temperature (25 and 80 degrees C) and environment (air and H-2) to evaluate the relative HE susceptibility of these alloys. At 25 degrees C, the untempered 410 SS was the specimen most susceptible to HE among the investigated specimens, whereas the 310S and tempered 410 specimens exhibited low HE susceptibility. The formation of strain-induced alpha'-martensite in a localized region in front of the notch tip was the main cause for the high HE susceptibility of the 304L SS tested at 25 degrees C. In general, the HE susceptibility was reduced to various degrees for specimens tested at 80 degrees C. A significantly lower susceptibility to HE was observed for the 304L specimen at 80 degrees C due to the suppressed formation of alpha'-martensite in the highly strained region. (c) 2013 Elsevier B.V. All rights reserved.
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页码：14 / 20
页数：7
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