Fretting Wear Behavior of Burnished Pure Copper under Oil Lubrication

Abstract:

Burnishing is an important mechanical surface enhancement technique which can smooth the component surface and improve the component’s fatigue, wear and anti-corrosion properties. Fretting tests lubricated with mineral oil were performed on a pure copper (PC) against a Si3N4 ball. The burnished surface exhibited a significantly improved fretting wear resistance and higher friction coefficient in comparison with the coarse-grained (CG) form. The wear volume of the burnished PC is quite lower than that of the CG PC. The friction coefficient of the CG PC increases with an increasing load, while the friction coefficient of burnished PC decreases with an increasing load up to 100N and then increases. The enhanced wear properties of the burnished surface are correlated with the compressive residual stress and work-hardening, which may partly result from grain refinement induced by burnishing.

• Periodical: Advanced Materials Research (Volumes 591-593)
• Pages: 1108-1112
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.591-593.1108
• Online since: November 2012
• Authors: Ning Li, Jing Zhao, Wei Xia, Feng Lei Li
• Keywords: Burnishing, Fretting Wear, Oil Lubrication, Pure Copper

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