Abstract
The volume removed from a ball as it slides against an abrasive surface is usually estimated by assuming that the wear scar formed on the ball is flat and circular and that the ball undergoes no plastic deformation. We show that these assumptions can lead to large errors. A simple alternative, in which we integrate the surface profile of the ball after wear, is demonstrated. This approach gives accurate results for wear scars that are not flat or circular, and it distinguishes plastic deformation from material removal.
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Harris, S.J., Krauss, G.G. Improved technique for measuring the ball volume removed in a ball-on-disk test. Tribology Letters 10, 187–188 (2001). https://doi.org/10.1023/A:1009014524815
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DOI: https://doi.org/10.1023/A:1009014524815