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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); Li, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710129, Shanxi, Peoples R China.
Source PublicationMaterials Letters
2014-12-15
Volume137Pages:218-220
ISSN0167-577X
AbstractA 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.
KeywordNanocrystalline Materials Simulation And Modelling Nano-grain Rotation Shear-coupled Migration Of Grain Boundaries Cracks Dislocation Emission
Subject AreaMaterials Science ; Physics
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000345469700059
Funding OrganizationThis 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.
DepartmentLNM仿生材料与固体的微尺度力学
Classification二类/Q1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49430
Collection非线性力学国家重点实验室
Corresponding AuthorLi, JJ (reprint author), Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Dept Engn Mech, Xian 710129, Shanxi, Peoples R China.
Recommended Citation
GB/T 7714
Li JJ,Su AJ,Chen SH,et al. 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,&Li, JJ .(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.
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