Strain field due to self-interstitial impurity in Ni

Pramana

S Prakash¹  Hitesh Sharma1² 

[1] Jiwaji University, Gwalior 474 011, India$$;Department of Physics, Panjab University, Chandigarh 160 014, India$$

关键词: Strain field;    transition metal dilute alloys;    point defects;    Kanzaki method.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The embedded-atom method have been applied to study the strain field produced by the self-interstitial impurity at the octahedral site in Ni. The calculation have been carried out consistently on the basis of discrete lattice theory, using Kanzaki method. The atomic force constants are evaluated using Wills and Harrison interatomic potential. The dynamical matrix and external force are evaluated considering the interaction up to first nearest neighbors. The atomic displacements are tabulated up to 20NN’s. These displacements are of oscillatory nature and of decreasing magnitude with NN’s distance. The physical properties such as self-interstitial formation energy and volume change calculated using atomic displacements are in accordance with the earlier studies.

【 授权许可】

Unknown