论文标题
在不锈钢中探索氢化物的形成,重新审视氢的氢化理论
Exploring Hydride Formation in Stainless Steel Revisits Theory of Hydrogen Embrittlement
论文作者
论文摘要
已经提出了各种机制来用于氢含糖,但是氢诱导的材料降解的因果关系尚不清楚。这项工作显示了由于相位不稳定性(分解)而引起的氢含糖。原位衍射测量结果揭示了在不锈钢中形成的亚稳态氢化物,通常称为非氢化物形成材料。通过在电化学充电和低缺陷形成的间隙能量中增加氢化学势可以通过增加氢化物的形成。我们的发现表明,只有在互惠过程中实时和实时测量氢诱导的材料降解,才能理解。
Various mechanisms have been proposed for hydrogen embrittlement, but the causation of hydrogen-induced material degradation has remained unclear. This work shows hydrogen embrittlement due to phase instability (decomposition). In-situ diffraction measurements revealed metastable hydrides formed in stainless steel, typically declared as a non-hydride forming material. Hydride formation is possible by increasing the hydrogen chemical potential during electrochemical charging and low defect formation energy of hydrogen interstitials. Our findings demonstrate that hydrogen-induced material degradation can only be understood if measured in situ and in real-time during the embrittlement process.