Surface texture plays an important role in the frictional behavior and transfer layer formation of contacting surfaces. In the present investigation, basic experiments were conducted using an inclined pin-on-plate sliding apparatus to better understand the role of surface texture on the coefficient of friction and the formation of a transfer layer. In the experiments, soft HCP materials such as pure Mg and pure Zn were used for the pins and a hardened 080 M40 steel was used for the plate. Two surface parameters of the steel plates—roughness and texture—were varied in tests that were conducted at a sliding speed of 2 mm/s in ambient conditions under both dry and lubricated conditions. The morphologies of the worn surfaces of the pins and the formation of the transfer layer on the counter surfaces were observed using a scanning electron microscope. In the experiments, the occurrence of stick-slip motion, the formation of a transfer layer, and the value of friction were recorded. With respect to the friction, both adhesion and plowing components were analyzed. Based on the experimental results, the effect of surface texture on the friction was attributed to differences in the amount of plowing. Both the plowing component of friction and the amplitude of stick-slip motion were determined to increase surface textures that promote plane strain conditions and decrease the textures that favor plane stress conditions.
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July 2009
Research Papers
Studies on Friction and Formation of Transfer Layer in HCP Metals
Pradeep L. Menezes,
Pradeep L. Menezes
Department of Materials Engineering,
Indian Institute of Science
, Bangalore 560 012, India
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Kishore,
Kishore
Department of Materials Engineering,
Indian Institute of Science
, Bangalore 560 012, India
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Satish V. Kailas,
Satish V. Kailas
Department of Mechanical Engineering,
e-mail: satvk@mecheng.iisc.ernet.in
Indian Institute of Science
, Bangalore 560 012, India
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Michael R. Lovell
Michael R. Lovell
Department of Industrial Engineering,
University of Wisconsin-Milwaukee
, Milwaukee, WI 53201
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Pradeep L. Menezes
Department of Materials Engineering,
Indian Institute of Science
, Bangalore 560 012, India
Kishore
Department of Materials Engineering,
Indian Institute of Science
, Bangalore 560 012, India
Satish V. Kailas
Department of Mechanical Engineering,
Indian Institute of Science
, Bangalore 560 012, Indiae-mail: satvk@mecheng.iisc.ernet.in
Michael R. Lovell
Department of Industrial Engineering,
University of Wisconsin-Milwaukee
, Milwaukee, WI 53201J. Tribol. Jul 2009, 131(3): 031604 (9 pages)
Published Online: June 2, 2009
Article history
Received:
December 20, 2008
Revised:
April 27, 2009
Published:
June 2, 2009
Citation
Menezes, P. L., Kishore, Kailas, S. V., and Lovell, M. R. (June 2, 2009). "Studies on Friction and Formation of Transfer Layer in HCP Metals." ASME. J. Tribol. July 2009; 131(3): 031604. https://doi.org/10.1115/1.3142904
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