Utility of a fretting device working under free displacement

Ghislain Roméo Yantio Njankeu Sabeya (1) , Jean-Yves Paris (1) , Jean Denape (1)

1 LGP - Laboratoire Génie de Production

Relative movements of low amplitudes between two materials in contact are generally reproduced on fretting devices with imposed displacement or imposed tangential force. The damage kinetics observed (cracking, wear) is established under such conditions. In this article, a fretting device working under free displacement is used to characterize the damages generated by seizure and wear. The conditions of seizure are analyzed from the total sliding distance and the discussion is focused on a correlation established with Dupre's work of adhesion. The wear behavior of materials has been characterized from an energetic wear coefficient taking into account the wear volume of contact, the total sliding distance and the dissipated energy.

Mots clés: Free displacement conditions in fretting; Seizure; Work of adhesion; Energetic wear coefficient; Titanium alloy; Coating

Domaines: Matériaux

Ghislain Roméo Yantio Njankeu Sabeya, Jean-Yves Paris, Jean Denape. Utility of a fretting device working under free displacement. Tribology International, 2009, vol. 42, pp.1330-1339. ⟨10.1016/j.triboint.2009.04.032⟩. ⟨hal-00756349⟩