Effect of Strain Restored Energy on Abnormal Grain Growth in Mg Alloy Simulated by Phase Field Methods
Abnormal grain growth of single phase AZ31 Mg alloy in the spatio-temporal process has been simulated by phase field models,and the influencing factors of abnormal grain growth are studied in order to find the ways to control secondary recrystallization in the microstructure.The study aims to find out the mechanisms for abnormal grain growth in real alloys.It is shown from the simulated results that the abnormal grain growth can be controlled by the strain restored energy.Secondary recrystallization after an annealing treatment can be induced if there are grains of a certain orientation in the microstructure with local high restored energy.However,if the value of the local restored energy at a certain grain orientation is not greater than 1.1E0,there may be no abnormal grain growth in the microstructure.
Yan Wu Yuan-yuan Huang
School of Mechanical Engineering,Wuhan Polytechnic University,Wuhan,China
国际会议
上海
英文
1-6
2017-12-28（万方平台首次上网日期，不代表论文的发表时间）