Hydrogen-assisted cracking
Hydrogen-assisted cracking
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氢辅助裂解
DOI：
10.1016/1044-5803(91)90016-w
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发表时间：
1991
影响因子：
4.7
通讯作者：
I. Le May
中科院分区：
文献类型：
--
作者：
A. Mcevily;I. Le May
本文综述了一些关于钢中氢辅助开裂的案例研究。在介绍案例研究之前，先简要回顾一下氢助裂化的研究现状。目前，氢助断裂机理的研究主要有两种方法，一种是基于键弱化的，另一种是基于应变局部化的。正如案例研究所表明的那样，氢辅助裂化可能会在可能意想不到的情况下导致故障。指出了向设计工程师广泛传播有关氢裂化的信息的必要性。
This article reviews a number of case studies involving hydrogen-assisted cracking in steels. Before the case studies are presented, the current state of understanding of hydrogen-assisted cracking is briefly reviewed. At present there are two leading approaches to the development of a mechanism of hydrogen-assisted cracking, one based upon bond weakening, and the other upon strain localization. As the case studies illustrate, hydrogen-assisted cracking can lead to failures in perhaps unexpected circumstances. The need for the wider dissemination of information about hydrogen cracking to design engineers is indicated.