晶体缺陷与扩散氢的弹性交互作用

Elastic Interaction between Crystal Defect and Diffusible Hydrogen

本文从晶体缺陷性质出发，以分析刃型位错与扩散氢微观交互作用为基础，对扩散氢的扩散、聚集微观行为作了较详细的讨论。结果表明，氢向晶体缺陷的聚集将择优富集于缺陷应力场的受拉区，并以此对形成氢致裂纹的临界扩散氢问题作了进一步的分析。

Based on the micro behaviour of interaction between edge dislocation and diffusible hydrogen and from the view of properties of crystal defect,the micro behaviour of diffusing and gathering for diffusible hydrogen has been discussed in detail.The result has showed that the gathering of hydrogen nearby crystal defect will happened in tensile area on defect stress field alternatively,and then the problem of critical diffusible hydrogen content for forming hydrogen assisted cracking has been analyzed further.