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Response of Materials During Sliding on Various Surface Textures

Menezes, Pradeep L and Kishore, * and Kailas, Satish V and Lovell, Michael R (2011) Response of Materials During Sliding on Various Surface Textures. In: Journal of Materials Engineering and Performance, 20 (8). pp. 1438-1446.

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In the present investigation, soft materials, such as Al-4Mg alloy, high-purity Al and pure Mg pins were slid against hard steel plates of various surface textures to study the response of materials during sliding. The experiments were conducted using an inclined pin-on-plate sliding apparatus under both dry and lubricated conditions in an ambient environment. Two kinds of frictional response, namely steady-state and stick-slip, were observed during sliding. In general, the response was dependent on material pair, normal load, lubrication, and surface texture of the harder material. More specifically, for the case of Al-4Mg alloy, the stick-slip response was absent under both dry and lubricated conditions. For Al, stick-slip was observed only under lubricated conditions. For the case of Mg, the stick-slip response was seen under both dry and lubricated conditions. Further, it was observed that the amplitude of stick-slip motion primarily depends on the plowing component of friction. The plowing component of friction was the highest for the surfaces that promoted plane strain conditions and was the lowest for the surfaces that promoted plane stress conditions near the surface.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Springer.
Keywords: friction;stick-slip;surface roughness;surface texture; transfer layer
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Id for Latest eprints
Date Deposited: 17 Nov 2011 08:59
Last Modified: 17 Nov 2011 08:59
URI: http://eprints.iisc.ac.in/id/eprint/42062

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