Fatigue crack growth behavior and hydrogen penetration properties in austenitic stainless steels exposed to high-pressure hydrogen gas environments
Fatigue crack growth behavior and hydrogen penetration properties in austenitic stainless steels exposed to high-pressure hydrogen gas environments
复制标题
高压氢气环境下奥氏体不锈钢的疲劳裂纹扩展行为和氢渗透性能
DOI：
10.2355/tetsutohagane.93.247
复制
发表时间：
2007
影响因子：
0.3
通讯作者：
Y. Murakami
中科院分区：
文献类型：
--
作者：
Y. Mine;C. Narazaki;Toshihiko Kanezaki;S. Matsuoka;Y. Murakami
研究了高压氢环境下带预应变和不带预应变的不锈钢的氢渗透性能，以及氢和马氏体对SUS304、SUS316L和SUS310S疲劳裂纹扩展行为的影响。用Sieverts定律和Fick定律成功地表达了氢在奥氏体不锈钢中的渗透行为。在SUS304中，氢暴露试样的疲劳裂纹扩展速率大约是未带电试样的两倍，而在SUS316L中，只有在裂纹长度较短时，氢的作用才会使裂纹扩展速率略有加速。虽然疲劳试样中氢的含量和从表面到地下的分布对疲劳裂纹的扩展有影响，但充氢的方法并不重要。氢暴露SUS304试样的滑移带更少、更离散，裂纹形貌更直、更薄。这表明氢引起滑动局部化，从而影响疲劳裂纹扩展行为。氢在SUS304中的渗透深度表明，应变诱发马氏体的存在增加了钢中氢的扩散系数。在暴露氢的稳定奥氏体不锈钢SUS310S中，滑移带是离散的，沿滑移带产生了大量的微裂纹。结果表明，含氢奥氏体不锈钢疲劳裂纹扩展速率的加速主要是由于氢的溶解导致的滑移局部化，而含氢奥氏体不锈钢中的应变诱发马氏体对滑移局部化起促进作用。
Hydrogen penetration properties into stainless steels with and without pre-strain exposed to high-pressure hydrogen environments and effects of hydrogen and martensite on fatigue crack growth behavior of SUS304, SUS316L and SUS310S were investigated. The hydrogen penetration behavior into the austenitic stainless steels was successfully expressed by Sieverts' and Fick's laws. In SUS304, the fatigue crack growth rates in the hydrogen-exposed specimen were approximately twice as high as those in the uncharged specimen, while in SUS316L, only slight acceleration in the crack growth rate due to hydrogen was observed only when the crack length was short. Although the hydrogen content and distribution from surface to subsurface in the fatigue specimen influenced the fatigue crack growth, the method of hydrogen charge was not substantial. In the hydrogen-exposed SUS304 specimen, slip bands were less and more discrete and the crack morphology was straighter and thinner. This suggests that hydrogen caused slip localization and accordingly affecting the fatigue crack growth behavior. The estimated hydrogen penetration depths into SUS304 indicate that the presence of strain-induced martensite increases hydrogen diffusivity in the steel. In a hydrogen-exposed stable austenitic stainless steel SUS310S, slip bands were discrete and a significant number of microcracks were generated along the slip bands. It can be concluded that the accelerations in fatigue crack growth rates in the hydrogen-charged austenitic stainless steels were essentially based on slip localization due to dissolved hydrogen, and that the strain-induced martensite in the austenitic stainless steels played a role in facilitation of slip localization with hydrogen.
氢电荷对循环应力应变特性和疲劳行为的影响
DOI：
--
发表时间：
2004
期刊：
Proceedings of the 15th European Conference of Fracture (CD-ROM)
影响因子：
--
作者：
相原広志;安原鋭幸;伊藤浩志;斉藤卓志;榎本和城;大竹尚登;H.UYAMA et al.
通讯作者：
H.UYAMA et al.
DOI：
--
发表时间：
2006
期刊：
Transactions of the Japan Society of Mechanical Engineers. A, Vol. 72, No. 713
影响因子：
--
作者：
KANEZAKI Toshihiko;NAGATA Koichi;MATSUNAGA Hisao;MURAKAMI Yukitaka
通讯作者：
MURAKAMI Yukitaka
氢对不锈钢疲劳裂纹扩展和马氏体相变的影响
DOI：
--
发表时间：
2006
期刊：
Transactions of the Japan Society of Mechanical Engineers. A, Vol. 72, No. 723
影响因子：
--
作者：
KANEZAKI Toshihiko;NARAZAKI Chihiro;MINE Yoji;MATSUOKA Saburo;MURAKAMI Yukitaka
通讯作者：
MURAKAMI Yukitaka