发表机构
Center for Advanced Systems Understanding (CASUS); Helmholtz-Zentrum Dresden-Rossendorf (HZDR)(先进系统理解中心; 德累斯顿-罗斯多夫亥姆霍兹中心)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本研究探讨氢在铁断裂时削弱内聚力的化学机制,揭示静电排斥是导致钢脆化的核心因素。
AI 中文摘要
通常坚固且韧性的钢——以铁为基体——在氢渗入时会遭受严重的脆化;对其原因的认识尚不充分。本工作探讨了氢在铁断裂过程中如何影响键强度,以及为何它会降低断裂面之间的内聚力,揭示了静电排斥的核心作用。
英文摘要
Normally strong and tough, steel$\unicode{x2014}$with iron as its base$\unicode{x2014}$falls prey to severe embrittlement when infiltrated by hydrogen; the insights into why are not well understood. This work explores how hydrogen affects bond strength in iron during fracture and why it reduces cohesion between fracture surfaces, laying bare the central role of electrostatic repulsion.