Flash Temperature on the Asperity Scale and Scuffing

[+] Author and Article Information
J. I. McCool, J. John

Penn State University, Penn State Great Valley, Malvern, PA 19355

J. Tribol 110(4), 659-663 (Oct 01, 1988) (5 pages) doi:10.1115/1.3261709 History: Online October 29, 2009


A simulation model is described for determining the distribution of asperity flash temperatures when rough surfaces undergo relative sliding. The asperities are assumed to deform elastically and to have coulomb friction at their tips. The spherical asperity model of Greenwood-Williamson is joined with the flash temperature approximation formulas developed by Kuhlmann-Wilsdorf. Two example applications illustrate the effect of sliding speed and material role reversal on mean flash temperature. The model is applied to scuffing tests on ground and polished roller specimens reported in the literature. The predicted flash temperature is found to vary inversely with the experimentally observed scuffing loads within each finish type. For the same rolling and sliding speeds, the ground specimens had a lower observed scuffing load and a higher predicted mean flash temperature than the smoother polished specimens.

Copyright © 1988 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In