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材料的高压氢脆问题是氢气储运中所常见的,针对材料氢脆性能的评价试验方法在国际上已经有许多标准发行,我国尚无相关标准,本文即针对材料氢脆的测试方法进行了介绍及讨论。根据载荷作用机制的不同,材料高压氢脆的测试方法可以分为三大类,分别为圆片试验方法、基于断裂力学的试验方法与基于慢应变速率拉伸的试验方法。这三类试验方法根据试样形式的不同会有所变动,在材料性能测试中所检测的指标也会有所不同,需根据工程实际进行合理选择。此外,为了推进材料氢脆性能评价研究,需加快对高压氢气试验装备的研发。
Hydrogen embrittlement of materials is common in hydrogen storage and transportation, hydrogen embrittlement performance evaluation test methods have many standards in the world, there is no relevant standards in our country, this article is for the material hydrogen embrittlement testing methods are introduced and discuss. According to the mechanism of load action, the test methods of high-pressure hydrogen embrittlement can be divided into three categories, namely the wafer test method, the test method based on fracture mechanics and the test method based on the slow strain rate tensile test. These three types of test methods according to the different forms of the sample will vary, the indicators tested in the material properties of the test will be different, according to the actual project to be a reasonable choice. In addition, in order to promote the evaluation of hydrogen embrittlement performance of materials, it is necessary to speed up the research and development of high-pressure hydrogen test equipment.