Effects of Static and Dynamic Strain Aging on Hydrogen Embrittlement in TWIP Steels Containing Al
Effects of Static and Dynamic Strain Aging on Hydrogen Embrittlement in TWIP Steels Containing Al
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DOI：
10.2355/isijinternational.53.1268
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发表时间：
2013-09
影响因子：
1.8
通讯作者：
M. Koyama;E. Akiyama;K. Tsuzaki
中科院分区：
文献类型：
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作者：
M. Koyama;E. Akiyama;K. Tsuzaki
概要：研究了Al对Fe-18 Mn-0. 6C基孪晶诱发塑性钢在不同应变速率下应变时效和抗氢脆性能的影响。Fe-18 Mn-0.6C钢在应变速率为1.7×10 - 6s-1时发生氢致断裂。提高应变速率和Al含量均能抑制氢致断裂。从应变时效强化材料的观点出发，发现了提高抗氢脆性的两个重要因素：（1）通过提高应变速率和Al含量抑制动态应变时效，（2）通过添加Al抑制加载下的静态应变时效。
Synopsis : Al effects on strain aging and resistance against hydrogen embrittlement were examined in Fe-18Mn-0.6C-based twinning-induced plasticity steels deformed at different strain rates. The Fe-18Mn-0.6C steel showed hydrogen-induced fracture when it had been pre-deformed at a strain rate of 1.7×10 –6 s –1 . The hydrogen-induced fracture was suppressed by increasing strain rate and increasing Al content. From the viewpoint of material strengthening by strain aging, we found two important factors improving the resistance to the hydrogen embrittlement; (1) suppression of dynamic strain aging by increasing strain rate and Al content, and (2) suppression of static strain aging under loading by the Al addition.