Experimental simulation of chemical reactions between ZDDP tribofilms and steel surfaces during friction processes

C. Minfray (1) , Thierry Le Mogne (1) , Ton Lubrecht (2) , J.M. Martin (1)

1 LTDS - Laboratoire de Tribologie et Dynamique des Systèmes
2 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]

Friction tests are performed in a controlled environment (Ultra High Vacuum), between steel surfaces and a ZDDP tribofilm at different contact severities. According to AES analyses, evidence of chemical reactions activated by friction is given. The reaction of the ZDDP tribofilm with the native iron oxide could partially explain its antiwear behavior.

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

C. Minfray, Thierry Le Mogne, Ton Lubrecht, J.M. Martin. Experimental simulation of chemical reactions between ZDDP tribofilms and steel surfaces during friction processes. Tribology Letters, 2006, 21 (1), pp.67-78. ⟨10.1007/s11249-005-9012-5⟩. ⟨hal-00663281⟩