Chip formation dependence of machining velocities in nano-scale by molecular dynamics simulations
文献类型：期刊论文
| 作者 | Su H ; Tang QH(汤奇恒)
|
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2014-12 |
| 卷号 | 57期号:12页码:2426-2433 |
| 通讯作者邮箱 | qhtang@imech.ac.cn |
| 关键词 | molecular dynamics chip formation machining velocities phase transition |
| ISSN号 | 1674-7321 |
| 产权排序 | [Su Hao; Tang QiHeng] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Tang, QH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 合作状况 | 国内 |
| 中文摘要 | In this study, molecular dynamics simulations were carried out to study the effect of machining velocities on the mechanism of chip formation in nano-metric copper. A wide range of cutting velocities was performed from 10 to 2000 m/s, and the microstructure's evolution from a crystalline state to an amorphous state was studied. At the low machining velocity, dislocations were generated from the surface in front of the tool, and the immobile dislocation deduced by the cross slip of dislocation was observed. At the high machining velocity, no crystal dislocation nucleated, but instead disorder atoms were found near the tool. Temperature near the tool region increased with the increasing machining velocities, and the temperature had an important effect on the phase transition of the crystal structure. |
| 学科主题 | Engineering; Materials Science |
| 分类号 | 二类/Q2 |
| 收录类别 | SCI ; EI |
| 资助信息 | The research was supported by the National Natural Science Foundation of China (Grant Nos. 11132011, 11021262 and 11172303), and the National Basic Research Program of China ("973" Project) (Grant No. 2012CB937500). |
| 原文出处 | http://dx.doi.org/10.1007/s11431-014-5708-9 |
| 语种 | 英语 |
| WOS记录号 | WOS:000346239500013 |
| 公开日期 | 2015-01-23 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49480]  |
| 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 | Su H,Tang QH. Chip formation dependence of machining velocities in nano-scale by molecular dynamics simulations[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2014,57(12):2426-2433. |
| APA | Su H,&汤奇恒.(2014).Chip formation dependence of machining velocities in nano-scale by molecular dynamics simulations.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,57(12),2426-2433. |
| MLA | Su H,et al."Chip formation dependence of machining velocities in nano-scale by molecular dynamics simulations".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 57.12(2014):2426-2433. |
入库方式： OAI收割
来源：力学研究所
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