Investigation of grain boundary activity in nanocrystalline Al under an indenter by using a multiscale method

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	Investigation of grain boundary activity in nanocrystalline Al under an indenter by using a multiscale method
	Y. F. Shao; X. Yang; X. Zhao; S. Q. Wang
	2012
发表期刊	Chinese Physics B
ISSN	1674-1056
卷号	21 期号:8
摘要	Grain boundary activity in nanocrystalline Al under an indenter is studied by using a multiscale method. It is found that grain boundaries and twin boundaries can be transformed into each other by emitting and absorbing dislocations. The transition processes might result in grain coarsening and refinement events. Dislocation reflection generated by a piece of stable grain boundary is also observed, because of the complex local atomic structure within the nanocrystalline Al. This implies that nanocrystalline metals might improve their internal structural stability with the help of some special local grain boundaries.
部门归属	[shao yu-fei; yang xin] liaoning tech univ, inst appl phys & technol, dept gen studies, huludao 125105, peoples r china. [zhao xing] liaoning univ technol, dept math & phys, jinzhou 121001, peoples r china. [wang shao-qing] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;shao, yf (reprint author), liaoning tech univ, inst appl phys & technol, dept gen studies, huludao 125105, peoples r china.;yfshao@alum.imr.ac.cn; zhao-heng-xing@126.com
关键词	Multiscale Simulation Nanocrystalline Materials Grain Boundaries Dislocations Molecular-dynamics Simulation Quasi-continuum Method Dislocation Nucleation Atomistic Simulations Mechanical-behavior Room-temperature Nanoscale Twins Deformation Nanoindentation Aluminum
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60213
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. F. Shao,X. Yang,X. Zhao,et al. Investigation of grain boundary activity in nanocrystalline Al under an indenter by using a multiscale method[J]. Chinese Physics B,2012,21(8).
APA	Y. F. Shao,X. Yang,X. Zhao,&S. Q. Wang.(2012).Investigation of grain boundary activity in nanocrystalline Al under an indenter by using a multiscale method.Chinese Physics B,21(8).
MLA	Y. F. Shao,et al."Investigation of grain boundary activity in nanocrystalline Al under an indenter by using a multiscale method".Chinese Physics B 21.8(2012).