Hydrogen transport in solution-treated and pre-strained austenitic stainless steels and its role in hydrogen-enhanced fatigue crack growth

被引：122
作者：
Mine, Y. [1 ,2 ]
Narazaki, C. [3 ]
Murakami, K. [3 ]
Matsuoka, S. [1 ,2 ]
Murakami, Y. [1 ,2 ]
机构：
[1] Kyushu Univ, Dept Mech Engn Sci, Nishi Ku, Fukuoka 8190395, Japan
[2] Natl Inst Adv Ind Sci & Technol, Res Ctr Hydrogen Ind Use & Storage HYDROGENIUS, Nishi Ku, Fukuoka 8190395, Japan
[3] Kyushu Univ, Grad Sch Engn, Fukuoka 8190395, Japan
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2009年 / 34卷 / 02期
关键词：
Hydrogen; Solubility; Diffusivity; Fatigue crack growth; Strain-induced martensitic transformation; Austenitic stainless steel; BEHAVIOR; EMBRITTLEMENT; PERMEATION; MECHANISM;
D O I：
10.1016/j.ijhydene.2008.11.018
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hydrogen solubility and diffusion in Type 304, 316L and 310S austenitic stainless steels exposed to high-pressure hydrogen gas has been investigated. The effects of absorbed hydrogen and strain-induced martensite on fatigue crack growth behaviour of the former two steels have also been measured. in the pressure range 10-84 MPa, the hydrogen permeation of the stainless steels could be successfully quantified using Sieverts' law modified by using hydrogen fugacity and Fick's law. For the austenitic stainless steels, hydrogen diffusivity was enhanced with an increase in strain-induced martensite. The introduction of dislocation and other lattice defects by pre-straining increased the hydrogen concentration of the austenite, without affecting diffusivity. It has been shown that the coupled effect of strain-induced martensite and exposure to hydrogen increased the growth rate of fatigue cracks. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1097 / 1107
页数：11
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