Extended Dislocations in Plastically Deformed Metallic Nanoparticles

Nanomaterials and Nanotechnology

Min Qi¹  Bin Zheng¹  Huiling Du¹  Yi-Nong Wang¹ 

关键词: Nanoparticles;    Nanomechanics;    Molecular Dynamics Simulations;   

DOI  :  10.5772/64100

来源: InTech

【 摘 要 】

In the present study, the sawtooth nature of compressive loading of metallic nanoparticles is observed using a molecular dynamics simulation. The atomic structure evolution confirmed that extended dislocations are the main defects split into two asynchronous partial dislocations, along with stored and released fault energy. This is considered the essence of sawtooth loading. The size of the nanoparticles relative to the equilibrium width of the extended dislocation is discussed to explain the simulation results.

【 授权许可】

Unknown