INFLUENCE OF STRAIN RATE AND TEMPERATURE ON INTERFACE MISFIT DISLOCATION NETWORKS IN NI-BASED SUPERALLOYS

摘要：

The three-dimension dislocation networks play an important role in the superior mechanical properties of Ni-based superalloys.In this paper,the effects of strain rate and temperature on the deformation and damage of dislocation networks in Ni-based superalloys are studied by molecular dynamics simulations.The deformation mechanisms of the phase interfaces at different strain rates and temperatures are explored.The results indicate that the dislocation networks of three different types of phase interfaces show different deformation and damage mechanisms at different strain rates and temperatures.

关键词： Ni-based superalloys dislocation networks strain rate temperature

作者: W.P.Wu Y.F.Guo Y.S.Wang

作者单位: Department of Engineering Mechanics,Wuhan University,Wuhan 430072,China Department of Engineering Me Institute of Engineering Mechanics,Beijing Jiaotong University,Beijing 100044,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 92-95

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）