Friction and wear during twin-disc experiments under ambient and cryogenic conditions

Luc Chevalier (1) , S. Cloupet (1) , M. Quillien (2)

1 LaM - Laboratoire de Mécanique
2 LISMMA - Laboratoire d'Ingénierie des Systèmes Mécaniques et des MAtériaux

We present a classical rolling contact apparatus where two discs roll and slide under a constant normal loading. Experimental results concerning bearing steel used in ambient air or under severe temperature conditions (liquid nitrogen) are presented. A simplified model proposed by Kalker (Fastsim) is used to identify the dynamic friction coefficient between these discs and to study the apparatus parameters' influence on dissipated energy. Wear evolution is simulated using classical Archard's law and compared to measured profiles. Influence of ambient conditions is highlighted by comparing friction and wear coefficients.

Mots clés: Experimental study; Modeling; Gas liquid; Liquid nitrogen; Ball bearing steel; Bearing steel; Friction coefficient; Mechanical contact; Rolling contact; Cryogenic temperature; Wear; Tribology; Friction

Domaines: Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]

Luc Chevalier, S. Cloupet, M. Quillien. Friction and wear during twin-disc experiments under ambient and cryogenic conditions. Tribology International, 2006, 39 (11), pp.1376-1387. ⟨10.1016/j.triboint.2005.12.003⟩. ⟨hal-00782485⟩