Research progress in plastic deformation mechanism of Mg alloys based on molecular dynamics
YANG Bao-cheng1,2, PENG Yan1,2, PAN Fu-sheng3, SHI Bao-dong1,2
1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, Hebei, China;
2. School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China;
3. National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China
Abstract：The computational material science based on molecular dynamics method is critical for the investigation of the micro-nano scale plastic deformation, which helps to clarify the competition relationship between different plastic deformation mechanisms of magnesium alloys.The mechanism of slip, twinning and grain boundary sliding in magnesium alloys was summarized; the basic principles of molecular dynamics and the potential functions commonly applied to the hexagonal close-packed structure metals were briefly introduced. Moreover,the research progress of plastic deformation mechanism of Mg alloys based on the molecular dynamics was mainly analyzed. Based on the main problems mentioned above, it was pointed out that the development of high-precision potential function for magnesium alloy multiple systems and how to achieve the relationship of multiple scales will be the focused directions in the further research.
杨宝成, 彭艳, 潘复生, 石宝东. 基于分子动力学镁合金塑性变形机制的研究进展[J]. 材料工程, 2019, 47(8): 40-48.
YANG Bao-cheng, PENG Yan, PAN Fu-sheng, SHI Bao-dong. Research progress in plastic deformation mechanism of Mg alloys based on molecular dynamics. Journal of Materials Engineering, 2019, 47(8): 40-48.
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2019, Vol. 47 
