Atomistic simulation of the influence of pressure on dislocation nucleation in bcc Mo

doi:10.1016/j.commatsci.2005.07.003

IMR OpenIR

	Atomistic simulation of the influence of pressure on dislocation nucleation in bcc Mo
	Xu, DS ; Yang, R ; Li, J ; Chang, JP ; Wang, H ; Li, D ; Yip, S
通讯作者	Xu, DS(dsxu@imr.ac.cn)
	2006-05-01
发表期刊	COMPUTATIONAL MATERIALS SCIENCE
ISSN	0927-0256
卷号	36 期号:1-2 页码:60-64
摘要	Molecular dynamics simulations were carried out to investigate the pressure dependence of homogeneous defect nucleation behavior in bee Mo, The crystal was sheared on the (1 (1) over bar0) [11 (1) over bar] slip system under different confining pressures. The defect nucleation stress was found to increase as the confining pressure increases. Dislocation loop was nucleated when sheared under hydrostatic compression, while Martensitic transformation was found to occur when sheared under sufficient hydrostatic tension. Atomistic details of the nucleation processes are analyzed and the influence of pressure on the nucleation dynamics of dislocations has been studied. Analysis was made with the help of the energetics of generalized stacking faults when the crystal was deformed statically under different hydrostatic pressure in a highly controlled manner. (c) 2005 Elsevier B.V. Ail rights reserved.
关键词	dislocation nucleation Martensite molecular dynamics bcc Mo pressure
DOI	10.1016/j.commatsci.2005.07.003
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000236652600012
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/87609
专题	中国科学院金属研究所
通讯作者	Xu, DS
作者单位	1.Chinese Acad Sci, Met Res Inst, Titanium Alloy Lab, Shenyang 110016, Peoples R China 2.Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA 3.MIT, Dept Nucl Engn, Cambridge, MA 02139 USA
推荐引用方式 GB/T 7714	Xu, DS,Yang, R,Li, J,et al. Atomistic simulation of the influence of pressure on dislocation nucleation in bcc Mo[J]. COMPUTATIONAL MATERIALS SCIENCE,2006,36(1-2):60-64.
APA	Xu, DS.,Yang, R.,Li, J.,Chang, JP.,Wang, H.,...&Yip, S.(2006).Atomistic simulation of the influence of pressure on dislocation nucleation in bcc Mo.COMPUTATIONAL MATERIALS SCIENCE,36(1-2),60-64.
MLA	Xu, DS,et al."Atomistic simulation of the influence of pressure on dislocation nucleation in bcc Mo".COMPUTATIONAL MATERIALS SCIENCE 36.1-2(2006):60-64.