Effect of Surface Hydrogen Concentration on Hydrogen Embrittlement Properties of Stainless Steels and Ni Based Alloys
Effect of Surface Hydrogen Concentration on Hydrogen Embrittlement Properties of Stainless Steels and Ni Based Alloys
复制标题
表面氢浓度对不锈钢及镍基合金氢脆性能的影响
DOI：
10.2355/isijinternational.isijint-2015-268
复制
发表时间：
2016
影响因子：
1.8
通讯作者：
M. Terunuma
中科院分区：
文献类型：
--
作者：
T. Omura;J. Nakamura;H. Hirata;Jotoku Kana;Masaki Ueyama;T. Osuki;M. Terunuma
氢是一种清洁能源，在不久的将来在各种能源系统中具有广泛应用的潜力。目前，在燃料电池汽车上装有压力高达70兆帕的氢气气瓶，正在实现商用化。许多为燃料电池汽车提供气态氢的加氢站正在建设中。为了保证氢气使用的安全性和公众接受度，研究氢气对氢气系统结构材料可靠性的影响是非常重要的。人们普遍认为气态氢会降低钢和其他金属的机械性能。气态氢引起的环境退化分为以下两种类型。一种是氢环境脆（HEE）或氢气脆（HGE），当无氢材料在室温附近的气态氢中进行机械测试时，就会发生这种脆。1-3) HGE敏感性是通过高压气态氢的拉伸试验（4,5）或疲劳试验(6)来评估的。另一种是内部可逆氢脆（IRHE），即表面氢浓度对不锈钢和镍基合金氢脆性能的氢预效应
Hydrogen is a clean energy source, and has the potential to be widely used in various energy systems in the near future. Fuel cell vehicles equipped with cylinders containing hydrogen gas with high pressure up to 70 MPa are now being commercialized. Many hydrogen stations to supply fuel cell vehicles with gaseous hydrogen are under construction. For the safety and public acceptance of using hydrogen gas, it is important to investigate effects of hydrogen on reliability of structural materials used for the hydrogen systems. It is widely recognized that gaseous hydrogen decreases mechanical properties of steels and other kinds of metals. The environmental degradation caused by gaseous hydrogen is classified to following two types. One is hydrogen environment embrittlement (HEE) or hydrogen gas embrittlement (HGE), which occurs when a hydrogenfree material is mechanically tested in gaseous hydrogen near room temperatures.1–3) HGE susceptibility is evaluated by tensile tests4,5) or fatigue tests6) in highly pressurized gaseous hydrogen. The other is internal reversible hydrogen embrittlement (IRHE), which occurs when a hydrogen preEffect of Surface Hydrogen Concentration on Hydrogen Embrittlement Properties of Stainless Steels and Ni Based Alloys