大塑性变形致金属铜纳米化机理的分子动力学模拟  

Molecular Dynamics Study on Nanocrystalliztion Mechanisms of Copper under Severe Plastic Deformation

作　　者：尤海峰[1] 周承恩[2] 

机构地区：[1]内蒙古大学交通学院 [2]内蒙古工业大学理学院

出　　处：《内蒙古工业大学学报（自然科学版）》2013年第3期166-172,共7页Journal of Inner Mongolia University of Technology：Natural Science Edition

摘　　要：大塑性变形法可制备致密度很高的纳米纯金属、金属间化合物等材料,但人们对这种方法导致的纳米晶粒细化过程和细化机理还缺乏深刻的认识和理解。本文采用分子动力学方法,在VC++环境下,编制了单晶铜在大塑性变形条件下的模拟程序和局部晶序分析程序。根据运行结果,得出了单晶铜的细化过程和细化机理。Severe plastic deformation is one of the few method which can make high density ＇s nanomaterials , but the understanding for the refinement process and the refinement mechanism of the crystal grain are still not adequate .Molecular dynamics method is adopted .in visual c＋＋environment ,simulation and local crystal lattice sequence analyzing programs are built .According to the result of move , the process of the deformation and the mechanism of the deformation are gained in single crystal .

关 键 词：剧烈塑性变形 纳米化 分子动力学 铜单晶 

分 类 号：TG146.11[一般工业技术—材料科学与工程]