Journal
TRIBOLOGY INTERNATIONAL
Volume 151, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2020.106490
Keywords
Fretting wear; Contact oxygenation concept; Abrasive adhesive wear; Advection-dispersion-reaction model (ADR); Tribo-oxidation
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Funding
- French National Research Agency (ANR, France)
- Ecole Centrale de Lyon (ECL, France) [ANR-16-CE08-0016]
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This paper aims at modelling contact oxygenation concept which describes the effects of fretting loading conditions on di-oxygen flow within the interface and the associated partition between abrasive and adhesive wear domains in fretting wear scars. This is achieved by modelling oxygen transport within fretting interface using an advection-dispersion-reaction approach (ADR) by considering debris bed as a compact porous medium traversed by atmospheric gases. ADR model is calibrated using three fretting tests of flat-on-flat 34NiCrMo16 interface. Results show that ADR approach can predict the partition of abrasion and adhesion for wide range of sliding frequencies, normal forces and contact sizes. Besides, it can capture the transition of wear mechanisms from pure abrasive to mixed abrasive-adhesive wear at different loading conditions.
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