Metal-based microchannel heat exchangers (MHEs) may offer a solution to thermal management required in a unlubricated bearing with ceramic or coated rolling elements. In this paper, we report results of tribological testing on steel coupons cooled by Cu-based MHEs. Low-profile Cu-based MHEs were fabricated and bonded to steel coupons, whose front faces were made to contact a crowned rotating steel ring, with and without oil lubrication. A series of tribological tests were conducted under different conditions with and without cooling. The tests collectively show that low-profile Cu-based MHEs placed in proximity of a tribological contact can be effective in removing heat generated at the contact interface, decrease the contact interfacial friction, and mitigate the amount of interfacial wear in sliding contacts, with and without oil lubrication. The present results suggest that cooling of tribological contact zones by embedding MHEs in proximity can be beneficial to tribological performance and deserves further investigations for tribological contact applications.
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July 2011
Research Papers
Tribological Testing of Steel Coupons Bonded to Cu-Based Microchannel Heat Exchangers
Fanghua Mei,
Fanghua Mei
Department of Mechanical Engineering,
Louisiana State University
, Baton Rouge
, LA 70803
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W. J. Meng,
W. J. Meng
Department of Mechanical Engineering,
Louisiana State University
, Baton Rouge
, LA 70803
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Carl H. Hager,
Carl H. Hager
Timken Technology Center, The Timken Company
, Canton
, OH 44706
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Liang A. Xue,
Liang A. Xue
Timken Technology Center, The Timken Company
, Canton
, OH 44706
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Ryan D. Evans,
Ryan D. Evans
Timken Technology Center, The Timken Company
, Canton
, OH 44706
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Gary L. Doll
Gary L. Doll
Timken Technology Center, The Timken Company
, Canton
, OH 44706
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Fanghua Mei
Department of Mechanical Engineering,
Louisiana State University
, Baton Rouge
, LA 70803
W. J. Meng
Department of Mechanical Engineering,
Louisiana State University
, Baton Rouge
, LA 70803
Carl H. Hager
Timken Technology Center, The Timken Company
, Canton
, OH 44706
Liang A. Xue
Timken Technology Center, The Timken Company
, Canton
, OH 44706
Ryan D. Evans
Timken Technology Center, The Timken Company
, Canton
, OH 44706
Gary L. Doll
Timken Technology Center, The Timken Company
, Canton
, OH 44706J. Tribol. Jul 2011, 133(3): 032201 (7 pages)
Published Online: July 21, 2011
Article history
Received:
October 11, 2010
Revised:
March 7, 2011
Online:
July 21, 2011
Published:
July 21, 2011
Citation
Mei, F., Meng, W. J., Hager, C. H., Xue, L. A., Evans, R. D., and Doll, G. L. (July 21, 2011). "Tribological Testing of Steel Coupons Bonded to Cu-Based Microchannel Heat Exchangers." ASME. J. Tribol. July 2011; 133(3): 032201. https://doi.org/10.1115/1.4003858
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