The effect of martensite on stress corrosion crack initiation of austenitic stainless steels in high-temperature hydrogenated water
The effect of martensite on stress corrosion crack initiation of austenitic stainless steels in high-temperature hydrogenated water
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DOI：
10.1016/j.corsci.2021.109600
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发表时间：
2021-08
影响因子：
8.3
通讯作者：
Litao Chang;M. G. Burke;K. Mukahiwa;J. Duff;Yongliang Wang;F. Scenini
中科院分区：
文献类型：
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作者：
Litao Chang;M. G. Burke;K. Mukahiwa;J. Duff;Yongliang Wang;F. Scenini
为了解马氏体对304 L/316 L不锈钢应力腐蚀裂纹（SCC）萌生的影响，对不同马氏体含量（α′/ε）的304 L/316 L不锈钢试样在高温氢化水中进行了慢应变速率拉伸（SSRT）试验。这些标本的特点之前和之后的SSRT测试使用互补的分析技术。据观察，与不含马氏体的其他冷加工不锈钢相比，含有马氏体的冷轧304 L需要更高的应变来诱导SCC引发。根据实验观察结果，讨论了不同钢的应力腐蚀开裂敏感性的机理。
Cold-worked Type 304L/316L stainless steel specimens, which contained different amounts of martensite (α′/ε), were tested in high-temperature hydrogenated water under slow strain rate tensile (SSRT) test conditions to understand the role of martensite on stress corrosion crack (SCC) initiation. These specimens were characterized prior to and after SSRT tests using complementary analytical techniques. It was observed that a higher strain was necessary to induce SCC initiation for cold-rolled 304L that contained martensite compared to the other cold-worked stainless steels that did not contain martensite. The mechanisms responsible for different SCC initiation susceptibilities of the steels were discussed based on the experimental observations.