干滑动条件和水环境(蒸馏水和海水)下青铜填充PTFE的摩擦学性能

IF 1 4区工程技术 Q4 ENGINEERING, MECHANICAL

International Journal of Surface Science and Engineering Pub Date : 2018-12-18 DOI:10.1504/IJSURFSE.2018.10017966

Mohammad Jebran Khan, M. F. Wani, Rajat Gupta

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引用次数: 8

摘要

研究了60wt.%青铜填充PTFE在环境空气、蒸馏水和海水中与AISI 420不锈钢滑动的摩擦学行为。实验是在销盘式摩擦计上在室温下在10N的正常载荷下进行的。与蒸馏水和干滑动相比，青铜填充PTFE在海水中表现出优异的摩擦学性能。海水环境下平均摩擦系数最低（0.045），比磨损率最低（1.10×10-5m3/Nm）。使用光学显微镜、SEM、EDS和3D表面轮廓仪进行了表面形态和表面分析研究，以揭示磨损机制。从对立面的轮廓测量痕迹中可以观察到，在海水中与填充青铜的PTFE滑动后，对立面的表面粗糙度没有增加，因此间接腐蚀性磨损不是主要的磨损机制。

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Tribological properties of bronze filled PTFE under dry sliding conditions and aqueous environments (distilled water and sea water)

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.

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来源期刊

International Journal of Surface Science and Engineering 工程技术-材料科学：膜

CiteScore

1.60

自引率

25.00%

发文量

审稿时长

>12 weeks

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.