ATOMISTIC SIMULATION OF DEFORMATION AND FAILURE MECHANISM FOR INTERMETALLIC COMPOUND Mg17Al12

摘要：

The deformation and failure processes of the composition of Mg17Al12 magnesium alloy near defects at atomic scale level are examined by means of molecular dynamics (MD) simulation.With the increase of temperature,the maximum elastic deformation and the yield stress of Mg17Al12 are reduced,obviously,.i.e.Softening.The effect of different radii of voids on deformation of Mg17Al12 is analyzed by means of the center of symmetry parameters.The dislocations have been observed along with the 110crystal direction,which reveal that the dislocation is the main deformation mechanisms of Mg17Al12.The neckingof intermetallic compound Mg17Al12 between the two voids show that it has well capable of plasticity.

关键词： molecular dynamics soften dislocation plastic deformation

作者: X.G Zeng W.B.Xu H.Y.Chen R.P.Xu

作者单位: College of Architecture and Environment,Sichuan University,Chengdu,SiChuan 610065,P.R.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: 55-58

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）