Molecular Dynamics Simulation of Hydrogen Enhancing Dislocation Emission.

doi:10.1007/BF02919680

IMECH-IR > 力学所知识产出(1956-2008)

	Molecular Dynamics Simulation of Hydrogen Enhancing Dislocation Emission.
	Zhou GH(周国辉); Zhou FX(周富信); Zhou FX; Zhao XD; Zhang WQ; Chen NX; Wan FR; Chu WY; Zhou, GH (reprint author), Univ Sci & Technol Beijing, Dept Mat Phys, Beijing 100083, Peoples R China.
发表期刊	SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES
	1998
卷号	41 期号:2 页码:176-181
ISSN	1006-9321
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.
关键词	Hydrogen Dislocation Emission Molecular Dynamics Computer Simulation
DOI	10.1007/BF02919680
收录类别	SCI
语种	英语
WOS记录号	WOS:000073104900008
关键词[WOS]	DEFORMATION ; FRACTURE
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/58493
专题	力学所知识产出(1956-2008)
通讯作者	Zhou, GH (reprint author), Univ Sci & Technol Beijing, Dept Mat Phys, Beijing 100083, Peoples R China.
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.,...&Zhou, GH .(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.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
JourArSuppl2016-213.（198KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览请求全文