The effects of ball surface condition in the micro‐scale abrasive wear test |
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Authors: | Allsopp DN Trezona RI Hutchings IM |
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Affiliation: | (1) Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge, CB2 3QZ, UK |
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Abstract: | The ball‐crater micro‐scale abrasive wear test can be applied to coated samples and small bulk samples. The surface condition
of the ball influences the magnitude and the reproducibility of the measured wear coefficient. Use of a polished new ball
in the test may give uncertain or anomalously low wear coefficients, particularly for relatively soft specimens. This effect
is explained in terms of the ease of entrainment of abrasive particles into the contact area. Reproducible results are obtained
with pre‐conditioned balls with slight surface pitting, and the use of such balls is recommended for routine testing.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | abrasive wear test dimpler test ball‐ crater micro‐ scale |
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