Synergistic lubrication mechanisms of AISI 4140 steel in dual lubrication systems of multi-solid coating and oil lubrication

被引：22
|
作者：
Huang, Qipeng [1 ,2 ]
Wu, Chaohua [1 ,2 ]
Shi, Xiaoliang [1 ,2 ]
Xue, Yawen [1 ,2 ]
Zhang, Kaipeng [1 ,2 ]
机构：
[1] Wuhan Univ Technol, Sch Mech & Elect Engn, 122 Luoshi Rd, Wuhan 430070, Peoples R China
[2] Wuhan Univ Technol, Shenzhen Res Inst, Shenzhen 518000, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2022年 / 169卷
关键词：
Dual lubrication; Biomimetic texture; Multi-solid lubricants; Oil lubrication; COMPOSITE; FRICTION; WEAR; FILM;
D O I：
10.1016/j.triboint.2022.107484
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In order to improve tribological properties of AISI 4140 steel (AS) for dry/starved lubrication, AS biomimetic self-lubricating material (AS-SACT) was prepared by filling SnAgCu-TiC into biomimetic microtextures. Compared with AS, the friction coefficient of AS-SACT was reduced by 5.34% and wear depth was reduced by 62.39% in starved lubrication. Tribological properties of AS-SACT in starved oil are close to those of full oil lubrication. Under starved lubrication, the precipitated lubricant spreads into a 2.2 mu m solid film on contact surface. In addition, the lubricant precipitation area forms a 'storage area' for storing lubricating oil and wear debris. The synergistic lubrication effect of multi-solid coating and oil lubrication makes AS-SACT have excellent anti-friction and wear-resisting effect.
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页数：12
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