Analysis of dislocation stability in nanoscale inhomogeneity with interface stress

摘要：

The stability of screw dislocations inside a nanoscale cylindrical inhomogeneity with interface stress is analyzed. The critical radius of the inhomogeneity of the screw dislocation stability in the nanoscale inhomogeneity is derived. The influence of the interface stress on the critical radius of the inhomogeneity is evaluated. The results indicate the critical radius of inhomogeneity will increase for considering the negative interface stress and will decrease for considering the positive interface stress. In addition, the critical radius increases with the decrease of the shear modulus of the matrix.

关键词： Dislocations Nanoscale inhomogeneity Interface stress Stability

作者: Fang Qi-hong Liu Yong Li Hui-zhong Huang Bo-yun

作者单位: State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body (Hunan University), Chang State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083

会议类型: 国内会议

会议名称: 2010中国材料研讨会

会议地点: 长沙

会议语种:英文

页码: 1-8

在线出版日期: 2010-06-19（万方平台首次上网日期，不代表论文的发表时间）