Knowledge Management System of Institue of Mechanics, CAS
| 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. | |
| Source Publication | SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES
 |
| 1998 | |
| Volume | 41Issue:2Pages:176-181 |
| ISSN | 1006-9321 |
| Abstract | 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. |
| Keyword | Hydrogen Dislocation Emission Molecular Dynamics Computer Simulation |
| DOI | 10.1007/BF02919680 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000073104900008 |
| WOS Keyword | DEFORMATION ; FRACTURE |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Multidisciplinary ; Materials Science, Multidisciplinary |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/58493 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Zhou, GH (reprint author), Univ Sci & Technol Beijing, Dept Mat Phys, Beijing 100083, Peoples R China. |
| Recommended Citation 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. |
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| JourArSuppl2016-213.（198KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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