{"title":"Tribological properties of bronze filled PTFE under dry sliding conditions and aqueous environments (distilled water and sea water)","authors":"Mohammad Jebran Khan, M. F. Wani, Rajat Gupta","doi":"10.1504/IJSURFSE.2018.10017966","DOIUrl":null,"url":null,"abstract":"The tribological behaviour of 60 wt. % bronze filled PTFE sliding against AISI 420 stainless steel in ambient air, distilled water and sea water was investigated. The experiments were conducted on a pin on disc tribometer at room temperature at a normal load of 10N. The bronze filled PTFE showed superior tribological performance in sea water as compared to distilled water and dry sliding. The lowest average coefficient of friction (0.045) and lowest specific wear rate (1.10 × 10‒5mm3/Nm) were observed under sea water environment. Surface morphological and surface analytical studies were conducted using optical microscopy, SEM, EDS and 3D surface profilometer to reveal wear mechanisms. From profilometric traces of counterface, it was observed that there was no increase in the surface roughness of the counterface after sliding against bronze filled PTFE in sea water and hence indirect corrosive wear is not the dominant wear mechanism.","PeriodicalId":14460,"journal":{"name":"International Journal of Surface Science and Engineering","volume":"12 1","pages":"348"},"PeriodicalIF":1.0000,"publicationDate":"2018-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Surface Science and Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1504/IJSURFSE.2018.10017966","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 8
Abstract
The tribological behaviour of 60 wt. % bronze filled PTFE sliding against AISI 420 stainless steel in ambient air, distilled water and sea water was investigated. The experiments were conducted on a pin on disc tribometer at room temperature at a normal load of 10N. The bronze filled PTFE showed superior tribological performance in sea water as compared to distilled water and dry sliding. The lowest average coefficient of friction (0.045) and lowest specific wear rate (1.10 × 10‒5mm3/Nm) were observed under sea water environment. Surface morphological and surface analytical studies were conducted using optical microscopy, SEM, EDS and 3D surface profilometer to reveal wear mechanisms. From profilometric traces of counterface, it was observed that there was no increase in the surface roughness of the counterface after sliding against bronze filled PTFE in sea water and hence indirect corrosive wear is not the dominant wear mechanism.
期刊介绍：
IJSurfSE publishes refereed quality papers in the broad field of surface science and engineering including tribology, but with a special emphasis on the research and development in friction, wear, coatings and surface modification processes such as surface treatment, cladding, machining, polishing and grinding, across multiple scales from nanoscopic to macroscopic dimensions. High-integrity and high-performance surfaces of components have become a central research area in the professional community whose aim is to develop highly reliable ultra-precision devices.
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