Abstract The effect of hydrogen charging on the microstructure and durability of traditional wrought and selective laser melted 316L stainless steels (SLMed 316L SSs) in a proton exchange membrane fuel cell was studied. The results showed that superior resistance to hydrogen damage was achieved by the SLMed 316L SS due to minimal transformation of austenite into martensite and that corrosion preferentially occurred at the martensite sites. The defect density of the passive film on the hydrogen-charged wrought 316 L SS was much higher than that of the SLMed counterpart, indicating the excellent passive film stability of the SLMed 316L SS.

中文翻译：

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在质子交换膜燃料电池环境中选择性激光熔化的 316L 不锈钢具有出色的抗氢损伤能力

摘要 研究了充氢对质子交换膜燃料电池中传统锻造和选择性激光熔化 316L 不锈钢（SLMed 316L SSs）的微观结构和耐久性的影响。结果表明，SLMed 316L SS 实现了优异的抗氢损伤能力，因为奥氏体向马氏体的转变极少，并且腐蚀优先发生在马氏体部位。充氢锻造 316 L SS 上钝化膜的缺陷密度远高于 SLMed 对应物，表明 SLMed 316L SS 具有出色的钝化膜稳定性。