Hydrogen-enhanced fatigue crack growth in steels and its frequency dependence
Hydrogen-enhanced fatigue crack growth in steels and its frequency dependence
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钢中氢强化疲劳裂纹扩展及其频率依赖性
DOI：
10.1098/rsta.2016.0412
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Saburo Matsuoka
中科院分区：
文献类型：
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作者：
Hisao Matsunaga;Osamu Takakuwa;Junichiro Yamabe;Saburo Matsuoka
在构件疲劳寿命设计的背景下，特别是那些预定用于加氢站和燃料电池车辆的构件，重要的是要了解钢中的氢致疲劳裂纹扩展（FCG）加速。因此，本文综述和讨论了加速机制及其影响因素，特别是对氢致FCG加速的特殊频率依赖性。此外，这种频率依赖性是通过引入一些潜在的责任元素，沿着由作者获得的新的实验数据进行辩论。这篇文章是主题问题的一部分“氢和金属的挑战”。
In the context of the fatigue life design of components, particularly those destined for use in hydrogen refuelling stations and fuel cell vehicles, it is important to understand the hydrogen-induced, fatigue crack growth (FCG) acceleration in steels. As such, the mechanisms for acceleration and its influencing factors are reviewed and discussed in this paper, with a special focus on the peculiar frequency dependence of the hydrogen-induced FCG acceleration. Further, this frequency dependence is debated by introducing some potentially responsible elements, along with new experimental data obtained by the authors.This article is part of the themed issue ‘The challenges of hydrogen and metals’.