Temperature Effect on Dislocation Slip Mechanism of Nanotwinned Mg with Void Defect at the Twin Boundary

KX Huang and JP Yao and QY Hu and LT Shao and Z Sun, 5TH ANNUAL INTERNATIONAL CONFERENCE ON MATERIAL ENGINEERING AND APPLICATION (ICMEA 2018), 484, 012018 (2019).

DOI: 10.1088/1757-899X/484/1/012018

In this paper, a molecular dynamics model is used to simulate the uniaxial tensile loading process at different temperatures of nano- twinned Mg with void defect at the twin boundaries. The dislocation slip mechanism during the stage of plastic deformation for different temperatures was studied. The results show that the initial edge dislocations formed from lattice misfit. It is found that the propagations of the slip bands emitted and the stacking faults also generated from Shockley partial dislocation.

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