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Comparison of rolling contact fatigue life between elastohydrodynamic lubricated point contacts pre and post running-in treatment.

Cao, H., Khan, Z. A. and Meng, Y., 2020. Comparison of rolling contact fatigue life between elastohydrodynamic lubricated point contacts pre and post running-in treatment. Tribology International, 144 (April), 106089.

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DOI: 10.1016/j.triboint.2019.106089

Abstract

Running-in method was employed as the method to alter surface microstructures to explore the effect of various morphological characteristics on micropitting fatigue lives. Various rough surfaces were formed by applying experimental running in processes on a series of ball-on-disc pairs. The evolutions of topography during the running-in processes were recorded. Rolling contact fatigue lives of these rough surfaces under elastohydrodynamic lubricated condition were calculated and compared based on Zaretsky's fatigue model. The results have indicated that a running-in process has significantly positive effect on prolonging micropitting fatigue lives. Theoretical analysis of the relationship between topographical parameters and micropitting fatigue lives to ascertain optimum morphological characteristics which are beneficial in reducing micropitting fatigue failures is the key originality of this work.

Item Type:Article
ISSN:0301-679X
Uncontrolled Keywords:Rolling Contact ; Micropitting ; Fatigue Life ; Running-in ; Morphological Characteristics ; Model, Simulation
Group:Faculty of Science & Technology
ID Code:33076
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:27 Nov 2019 16:09
Last Modified:18 Dec 2019 13:58

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