the National Nature Science Foundation of China(Grant No.51171040 and No. 50771028);National High Technology Research and Development Program of China(Grant No. 2013AA031601) for the financial support of this study
机构署名：
本校为第一且通讯机构
院系归属：
机械工程学院
摘要：
The grain growth of nanocrystalline AZ31 magnesium alloy containing spherical particles with different sizes is simulated by phase field methods. It is shown that the role of pinning effect of the second phase particles during grain growth is interesting. There is a critical particle size to affect the grain growth in nanostructure. If the size of particles is lower than the critical value, the effect of pinning for grain growth will be increased with further decreasing the size. If the size is larger than the critical value, the particles nearly have no pinning effects. The critical value is ...
