A coupling crack blunting mechanism in nanocrystalline materials by nano-grain rotation and shear-coupled migration of grain boundaries

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	A coupling crack blunting mechanism in nanocrystalline materials by nano-grain rotation and shear-coupled migration of grain boundaries
	Li JJ(李建军); Su AJ(苏爱嘉); Chen SH(陈少华)
刊名	Materials Letters
	2014-12-15
通讯作者邮箱	jianjunli.mech@gmail.com
卷号	137 页码:218-220
关键词	Nanocrystalline materials Simulation and modelling Nano-grain rotation Shear-coupled migration of grain boundaries Cracks Dislocation emission
ISSN号	0167-577X
通讯作者	Li, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710129, Shanxi, Peoples R China.
产权排序	[Li, Jianjun] Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710129, Shanxi, Peoples R China; [Soh, A. K.] Monash Univ Malaysia, Sch Engn, Bandar Sunway, Salangor, Malaysia; [Chen, Shaohua] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
合作状况	国际
中文摘要	A theoretical model has been developed to investigate the effect of a special cooperative process between two main modes of stress-driven nano-grain growth, i.e., nano-grain rotation and shearcoupled migration of grain boundaries, on the emission of lattice dislocations from a semi-infinite crack in nanocrystalline materials. The results obtained show that the above-mentioned collaborative process is highly conducive to the process of dislocation emission, thus, rendering strong crack blunting in nanocrystalline materials. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Materials Science ; Physics
分类号	二类/Q1
收录类别	SCI ; EI
资助信息	This work was supported by the National Natural Science Foundation of China (NSFC) (11402203), the Fundamental Research Funds for the Central Universities (3102014JCQ01039) and the Start-up Funds for the Newly-recruited High-level Talents from Northwestern Polytechnical University, China. A.K. Soh acknowledges the support of the Advanced Engineering Programme and School of Engineering, Monash University Malaysia, as well as the eScience grant (Project no.: 06-02-10-SF0195) provided by the Ministry of Science, Technology and Innovation (MOSTI), Malaysia.
原文出处	http://dx.doi.org/10.1016/j.matlet.2014.08.136
语种	英语
WOS记录号	WOS:000345469700059
公开日期	2015-01-04
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/49430]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Li JJ,Su AJ,Chen SH. A coupling crack blunting mechanism in nanocrystalline materials by nano-grain rotation and shear-coupled migration of grain boundaries[J]. Materials Letters,2014,137:218-220.
APA	Li JJ,Su AJ,&Chen SH.(2014).A coupling crack blunting mechanism in nanocrystalline materials by nano-grain rotation and shear-coupled migration of grain boundaries.Materials Letters,137,218-220.
MLA	Li JJ,et al."A coupling crack blunting mechanism in nanocrystalline materials by nano-grain rotation and shear-coupled migration of grain boundaries".Materials Letters 137(2014):218-220.