Atomistic simulation of microstructure evolution at a crack tip in magnesium single crystal
Magnesium and its alloys have attracted attention in recent years as lightweight materials for the transportation industry due to their low density and relatively high specific strength.Due to the hexagonally close-packed (hcp) structure,the fracture toughness of magnesium alloys has generally been reported to be much lower than that of other metals and alloys,such as facecentered cubic (fcc) or body centered cubic (bcc) metals.So it is very important to study the fracture of magnesium alloys.In the present paper,we use the molecular dynamics simulation to analyze microstructure evolution at a crack tip in magnesium single crystal.We select eight types of cracks with different crack planes and crack fronts.
magnesium atomistic simulation crack twinning slip
Ya-Fang Guo Hai-Guang Wang Xiao-Zhi Tang Shuang Xu
Institute of Engineering Mechanics,Beijing Jiaotong University,Beijing 100044,China
国际会议
北京
英文
1-1
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）