Abstract Based on fundamental difference in diffusion mechanisms of substitutional and interstitial atoms and using molecular dynamics simulation of hydrogen migration, it is shown that accelerated hydrogen flux in the polycrystalline iron, as observed in the course of cathodic charging, cannot originate from the enhanced hydrogen grain boundary diffusion. A possible role of grain boundary cracking is supposed.

中文翻译：

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对论文“氢渗透下银饰演化的原位观察：晶界取向错误对纯铁中氢通量的影响”的评论，作者：M. Koyama 等人。Scripta Mater 2017；129:48–51

摘要 基于置换原子和填隙原子扩散机制的根本差异，并使用氢迁移的分子动力学模拟，表明在阴极充电过程中观察到的多晶铁中加速的氢通量不能源自增强的氢晶粒。边界扩散。推测晶界开裂的可能作用。