Abstract The characteristics of hydride formation on metallic U at the early stages were investigated for three differently treated samples. The first sample reacted in its as-received state, the second was thermally annealed and the third sample underwent cold work-hardening prior to reaction with deuterium. From the analysis, the vacuum heat-treated sample was found to be more resilient to hydriding at the nucleation and growth stage, exhibiting a reduced number of nucleation points when compared to the as-cast uranium. The work-hardened sample was observed to be more susceptible to H 2 corrosion, displaying very dissimilar hydriding behaviour when compared to the other.

中文翻译：

---

加工硬化和热退火对铀氢腐蚀反应早期的影响

摘要 对三种不同处理的样品研究了早期金属U上氢化物形成的特征。第一个样品以其原样反应，第二个样品经过热退火，第三个样品在与氘反应之前进行冷加工硬化。从分析中发现，真空热处理的样品在成核和生长阶段对氢化更具弹性，与铸态铀相比，成核点数量减少。观察到加工硬化的样品更容易受到 H 2 腐蚀，与其他样品相比表现出非常不同的氢化行为。