Martensite Formation in Hydrogen-Containing Metastable Austenitic Stainless Steel During Micro-Tension Testing
Martensite Formation in Hydrogen-Containing Metastable Austenitic Stainless Steel During Micro-Tension Testing
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微拉伸试验过程中含氢亚稳奥氏体不锈钢中马氏体的形成
DOI：
10.1007/s11661-011-0925-3
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Y. Mine
中科院分区：
文献类型：
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作者：
堀田宗孝;松垣あいら;石本卓也;中野貴由;礒部仁博;佐久太郎;井手拓哉，常深昭寛，中嶋英雄;Y. Mine
研究了304不锈钢微拉伸过程中形变诱发马氏体的特征。未充氢和充氢试样的应力-应变行为表明，氢加速了硬化的发生，但降低了应变硬化速率，导致过早的塑性不稳定。在这两个样本中，一组与Kurdjumov-Sachs关系相关的孪晶α′-马氏体变体是普遍存在的。西山-沃瑟曼关系变体也形成了，但它被氢抑制了。这可能是由于潜在的变形微观结构的差异。
Deformation-induced martensite in type 304 stainless steel during micro-tension testing was characterized. The stress-strain behavior of uncharged and hydrogen-charged specimens revealed that hydrogen hastened the onset of hardening but decreased the strain-hardening rate, leading to premature plastic instability. In both specimens, a set of twin-related α′-martensite variants with Kurdjumov–Sachs relationships was prevalent. The Nishiyama–Wasserman relationship variant was also formed, but it was suppressed by hydrogen. This may be attributed to differences in the underlying deformation microstructure.