中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Molecular Dynamics Simulation of Hydrogen Enhancing Dislocation Emission.

文献类型:期刊论文

作者Zhou GH(周国辉); Zhou FX(周富信); Zhou FX; Zhao XD; Zhang WQ; Chen NX; Wan FR; Chu WY
刊名SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES
出版日期1998
卷号41期号:2页码:176-181
关键词hydrogen dislocation emission molecular dynamics computer simulation
ISSN号1006-9321
产权排序Univ Sci & Technol Beijing, Dept Mat Phys, Beijing 100083, Peoples R China; Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China; Univ Sci & Technol Beijing, Dept Phys, Beijing 100083, Peoples R China
通讯作者Zhou, GH (reprint author), Univ Sci & Technol Beijing, Dept Mat Phys, Beijing 100083, Peoples R China.
中文摘要The interactive pair potential between Al and H is obtained based on the ab initio calculation and the Chen-Mobius 3D lattice inversion formula. By utilizing the pair potentials calculated, the effects of hydrogen on the dislocation emission from crack tip have been studied. The simulated result shows that hydrogen can reduce the cohesive strength for Al single crystal, and then the critical stress intensity factor for partial dislocation emission decreases from 0.11 MPa root m (C-H = 0) to 0.075 MPa root m (C-H=0.72%) and 0.06 MPa root m (C-H = 1.44%). This indicates thar hydrogen can enhance the dislocation emission. The simulation also shows that atoms of hydrogen can gather and turn into small bubbles, resulting in enhancement of the equilibrium vacancy concentration.
类目[WOS]Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
研究领域[WOS]Engineering ; Materials Science
关键词[WOS]DEFORMATION ; FRACTURE
收录类别SCI
语种英语
WOS记录号WOS:000073104900008
源URL[http://dspace.imech.ac.cn/handle/311007/58493]  
专题力学研究所_力学所知识产出(1956-2008)
推荐引用方式
GB/T 7714
Zhou GH,Zhou FX,Zhou FX,et al. Molecular Dynamics Simulation of Hydrogen Enhancing Dislocation Emission.[J]. SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES,1998,41(2):176-181.
APA 周国辉.,周富信.,Zhou FX.,Zhao XD.,Zhang WQ.,...&Chu WY.(1998).Molecular Dynamics Simulation of Hydrogen Enhancing Dislocation Emission..SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES,41(2),176-181.
MLA 周国辉,et al."Molecular Dynamics Simulation of Hydrogen Enhancing Dislocation Emission.".SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES 41.2(1998):176-181.

入库方式: OAI收割

来源:力学研究所

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