Hysteresis in three-dimensional multi-layer molecularly thin-film lubrication | |
Wu ZB(武作兵) | |
发表期刊 | ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS |
2023-05 | |
卷号 | 237页码:737-63 |
ISSN | 0942-9352 |
摘要 | For three-dimensional multi-layer molecularly thin-film lubrication system with elastic substrates, roles of hysteresis on tribological properties are investigated by using the multiscale simulation method. It is found that multiple stick-slip transitions with/without hysteresis loops appear in a sliding process and form a quasi-periodic progress with lattice distance. For the few-/multi-layer thin-film lubrication system, as the load increases, the hysteresis length monotonously increases/tends to keep constant. The hysteresis is mainly caused by the relaxation of metastable states of solid atoms in the elastic substrates, which delays the system back to its equilibrium states. In the quasi-periodic shearing progress, the effective elastic coefficients and the hysteresis lengths approximately remain unchanged, which reveals that although the hysteresis loops with the same lengths appear in the sliding process, the total systematic energy is still conserved. These findings not only provide a profound understanding of roles of hysteresis in the thin-film lubrication system but also show the effects of film layers and loads on the systematic tribological properties, which are of great significance for practical applications. |
关键词 | friction hysteresis multiscale modeling shear stress thin-film lubrication |
DOI | 10.1515/zpch-2023-0220 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000988834500001 |
WOS研究方向 | WOS:000988834500001 |
项目资助者 | National Natural Science Foundation of China [11172310, 11472284, 12272384] |
课题组名称 | 微纳米流体力学 |
论文分区 | 二类 |
力学所作者排名 | 1 |
RpAuthor | Wu ZB |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/92248 |
专题 | 非线性力学国家重点实验室 |
作者单位 | 1.(Wu Zuo-Bing) Chinese Acad Sci Inst Mech LNM Beijing 100190 Peoples R China 2.(Wu Zuo-Bing) Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China |
推荐引用方式 GB/T 7714 | Wu ZB. Hysteresis in three-dimensional multi-layer molecularly thin-film lubrication[J]. ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS,2023,237:737-63. |
APA | Wu ZB.(2023).Hysteresis in three-dimensional multi-layer molecularly thin-film lubrication.ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS,237,737-63. |
MLA | Wu ZB."Hysteresis in three-dimensional multi-layer molecularly thin-film lubrication".ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS 237(2023):737-63. |
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