Hydrogen embrittlement (HE) phenomena and mechanisms
Hydrogen embrittlement (HE) phenomena and mechanisms
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DOI：
10.1533/9780857093769.1.90
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
S. Lynch
中科院分区：
文献类型：
--
作者：
S. Lynch
摘要：描述了钢和其他材料的氢脆机理，并总结了支持各种假说的证据，如基于位错形成、氢增强的脱粘、氢增强的局部塑性、吸附诱导的位错发射和氢空位相互作用的假说。这些机制的相对重要性，不同的断裂模式和材料进行了讨论的基础上详细的断口观察和临界实验。
Abstract: Mechanisms of hydrogen embrittlement in steels and other materials are described, and the evidence supporting various hypotheses, such as those based on hydride-formation, hydrogen-enhanced decohesion, hydrogen-enhanced localised plasticity, adsorption-induced dislocation- emission, and hydrogen-vacancy interactions, are summarised. The relative importance of these mechanisms for different fracture modes and materials are discussed based on detailed fractographic observations and critical experiments.