Edge effect factor affecting the tribological properties in water of protrusion surface textures on stainless steel
| Autor: | Xingyang Wu, Zhou Ge, Haozhi Niu, Jingjie Ruan, Jianhua Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
stress analysis
stainless steel lubricants surface texture wear sliding friction lubrication mechanical contact edge profiling edge effect factor tribological properties protrusion surface textures normally textured patterns stress concentration nonconformal contacting pairs protrusion-type textures stainless steel discs protrusions friction tests wedge contact normally textured pairs friction reduction effect area ratios area ratio sliding lubricant supply contact interfaces Biotechnology TP248.13-248.65 Biochemistry QD415-436 |
| Zdroj: | Biosurface and Biotribology (2018) |
| Druh dokumentu: | article |
| ISSN: | 2405-4518 |
| DOI: | 10.1049/bsbt.2018.0005 |
| Popis: | Surface textures have been demonstrated to have a positive effect on the friction reduction. However, sharp edges of the normally textured patterns usually cause stress concentration and severe wear during sliding, especially for non-conformal contacting pairs. In this study, protrusion-type textures were fabricated at different area ratios on stainless steel discs and edge profiling was performed for the protrusions, and friction tests were conducted in water to investigate the tribological properties. The results show that the friction was reduced markedly by edge profiling due to the formation of wedge contact and improvement of lubricant supply to the contact interfaces under low load. Under high load, severe wear destroyed the wedge contact resulting in high friction as those of the normally textured pairs. High area ratio exhibited better friction reduction effect. The stress analysis via ANSYS indicated that much high stress concentrated at the edges of the protrusions and could be reduced significantly by edge profiling. |
| Databáze: | Directory of Open Access Journals |
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