Entropy generation related to plastic deformation in fretting friction
文献类型：期刊论文
| 作者 | Song, Yi1,2; Dai, Zhendong1; Xue QJ(薛群基)3
|
| 刊名 | Wear
 |
| 出版日期 | 2014 |
| 卷号 | 315期号:1-2页码:42-50 |
| 关键词 | Entropy generation Energy dissipation Fretting Plasticity deformation FEM |
| ISSN号 | 0043-1648 |
| 通讯作者 | Dai, Zhendong |
| 英文摘要 | Plastic deformation is generally considered as one of the principal mechanisms to dissipate energy in tribological procedures, but how the energy is dissipated through plastic deformation is still not clearly understood because the tribological procedures are influenced by a large number of strongly coupled time-varying factors, which make tribology extraordinarily complicated and obscure. This paper calculates the entropy generation produced by plastic deformation during fretting. A computational formula for entropy generation produced by plastic behaviors is set up and further validated by using an elastic-plastic finite-element-based method with the commonly used cylinder-on-flat configuration. Both the maximum and the minimum entropy generation are found several tens of micrometers below the contact surfaces, indicating that the major energy is dissipated in this region. The entropy generation in front of the contact centers is generally negative, whereas that behind the contact centers is always positive. Particularly surprising is that the overall entropy generation is negative. These findings reveal that the microstructures in front of the contact centers possibly tend to be more ordered whereas those behind the contact centers may be prone to more disordered. Regions several micrometers below the surface are the most dissipative and degrade easily. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the Doctoral Program of Higher Education of China (Grant no. 20123218110031); the National Natural Science Foundation of China (Grant no. 61161120323) |
| 语种 | 英语 |
| WOS记录号 | WOS:000337877700007 |
| 源URL | [http://210.77.64.217/handle/362003/18277]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 作者单位 | 1.Nanjing Univ Aeronaut & Astronaut, Inst Bioinspired Struct & Surface Engn, Nanjing 210016, Jiangsu, Peoples R China 2.Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, Nanjing 210016, Jiangsu, Peoples R China 3.Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Yi,Dai, Zhendong,Xue QJ. Entropy generation related to plastic deformation in fretting friction[J]. Wear,2014,315(1-2):42-50. |
| APA | Song, Yi,Dai, Zhendong,&Xue QJ.(2014).Entropy generation related to plastic deformation in fretting friction.Wear,315(1-2),42-50. |
| MLA | Song, Yi,et al."Entropy generation related to plastic deformation in fretting friction".Wear 315.1-2(2014):42-50. |
入库方式： OAI收割
来源：兰州化学物理研究所
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