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Molecular Dynamics Simulation of Twin-Dislocation Interactions in Magnesium

thesis
posted on 2023-01-09, 01:02 authored by YUAN YUE
Deformation twinning and dislocation slip are the most important mechanisms in determining the plastic deformation behaviour of Mg. In this project, the interactions between two types of twins, including (10-12) extension and (10-11) contraction twins, and three types of dislocations, including < a >, < c > and < c+a > type dislocations, are studied using molecular dynamics simulation. The focus of this work is to establish the formation condition for different types of interaction products, the characters of the products, the subsequent interaction between the migrating twin boundary and the resultant lattice defect structure in the twin crystal.

History

Campus location

Australia

Principal supervisor

Jian Feng Nie

Year of Award

2023

Department, School or Centre

Materials Science and Engineering

Course

Doctor of Philosophy

Degree Type

DOCTORATE

Faculty

Faculty of Engineering

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