Influence of Surface Texture and Roughness of Softer and Harder Counter Materials on Friction During Sliding

Menezes, Pradeep L and Kishore, Kishore and Kailas, Satish V and Lovell, Michael R (2015) Influence of Surface Texture and Roughness of Softer and Harder Counter Materials on Friction During Sliding. In: JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 24 (1). pp. 393-403.

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Abstract

Surface texture influences friction during sliding contact conditions. In the present investigation, the effect of surface texture and roughness of softer and harder counter materials on friction during sliding was analyzed using an inclined scratch testing system. In the experiments, two test configurations, namely (a) steel balls against aluminum alloy flats of different surface textures and (b) aluminum alloy pins against steel flats of different surface textures, are utilized. The surface textures were classified into unidirectionally ground, 8-ground, and randomly polished. For a given texture, the roughness of the flat surfaces was varied using grinding or polishing methods. Optical profilometer and scanning electron microscope were used to characterize the contact surfaces before and after the experiments. Experimental results showed that the surface textures of both harder and softer materials are important in controlling the frictional behavior. The softer material surface textures showed larger variations in friction between ground and polished surfaces. However, the harder material surface textures demonstrated a better control over friction among the ground surfaces. Although the effect of roughness on friction was less significant when compared to textures, the harder material roughness showed better correlations when compared to the softer material roughness.

Item Type:	Journal Article
Publication:	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
Publisher:	SPRINGER
Additional Information:	Copy right for this article belongs to the SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Keywords:	friction; roughness; scratch test; surface texture
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	06 Feb 2015 14:38
Last Modified:	06 Feb 2015 14:38
URI:	http://eprints.iisc.ac.in/id/eprint/50770

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