High-temperature hydrogen resistance of stainless steels

被引：0
|
作者：
O. I. Balyts’kyi
V. I. Vytvyts’kyi
L. M. Ivas’kevych
V. M. Mochul’s’kyi
S. O. Hrebenyuk
机构：
[1] Ukrainian National Academy of Sciences,Karpenko Physicomechanical Institute
来源：
Materials Science | 2010年 / 46卷
关键词：
short-term strength and plasticity; low-cycle fatigue life; static and cyclic crack resistance; stainless steels; hydrogen degradation; character of fracture;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
At elevated temperatures, the influence of hydrogen on various mechanical characteristics of martensitic and disperse-hardened austenitic steels is different. The maraging steel has better characteristics of durability and plasticity and the critical values of static and cyclic crack resistance at temperatures of 450–600°K than the austenitic steel with intermetallic hardening. As a result of the intense temperature softening, its ultimate and yield strengths are much lower than for the austenitic steel. The austenitic steel has higher resistance in terms of the threshold value ∆Kth. At room temperature, the low-cycle fatigue limit proves to be most sensitive to the action of hydrogen, whereas at 673°K, the parameter Kfc for the maraging steel decreases.
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页码：221 / 233
页数：12
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