【摘要】 运用分子动力学方法,研究了镍基单晶高温合金γ/γ′相界面错配位错网络的特征.通过对界面位错的形成、位错的反应、位错网络的演化等现象的分析发现,在温度场影响下,位错网络将由弛豫初期的十四面体演化成最终的正六面体.更多还原

【Abstract】 The molecular dynamics simulations are used to study the characteristics of misfit dislocation networks in the γ/γ’ phase interface of a Ni-based single-crystal superalloy.From the analyses of the formation of interphase dislocations,the reaction of dislocations,and the evolution of dislocation networks,we find that the shape of the dislocation network finally evolves into a regular hexahedron from an original tetradedron.更多还原