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How to Select 2D and 3D Roughness Parameters at Their Relevant Scales by the Analysis of Covariance

Abstract : In this paper, a multi-scale methodology is proposed to model and characterize the effect of two lubricants on changes in surface morphology during a running-in test. The test concerns two steels samples, mounted on a twin-disc tribometer to test each of lubricants A and B for a period of 42 h. The changes are characterized by the standardized roughness parameters given in ISO 25178. A technique involving replication is used to monitor wear during the test. Using all these replication measurements, a multi-scale methodology is applied. These selected models highlighted the relevant parameters for quantifying wear during lifespan, and also showed that lubricant A was better able to preserve surface integrity during wear than lubricant B.
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https://hal-uphf.archives-ouvertes.fr/hal-03440999
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Submitted on : Monday, November 22, 2021 - 4:03:26 PM
Last modification on : Wednesday, November 24, 2021 - 3:32:31 AM

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Stéphane Tchoundjeu Ngatchou, Maxence Bigerelle, Francois Robbe-Valloire, Tony da Silva Botelho, Frédéric Jarnias. How to Select 2D and 3D Roughness Parameters at Their Relevant Scales by the Analysis of Covariance. Materials, MDPI, 2020, 13 (7), pp.1526. ⟨10.3390/ma13071526⟩. ⟨hal-03440999⟩

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