Journal
TRIBOLOGY INTERNATIONAL
Volume 40, Issue 10-12, Pages 1428-1440Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2007.02.011
Keywords
fretting; wear; Ti-Al-4V; TiC; coating durability; wear modelling
Categories
Ask authors/readers for more resources
A friction energy formalism is considered and adapted to formalize the fretting wear responses of adhesive wear and non-adhesive wear interfaces. It is shown that for non-adhesive wear tribocouples like hard coatings (TiN, TiC, etc.) the wear kinetics can be formalized using the accumulated friction dissipated energy. By contrast, adhesive wear contacts involving aluminium and titanium alloys display a critical dependance regarding the applied sliding amplitude. The wear kinetics of such systems is captured by considering a sliding reduced energy wear formulation. A combined composite energy wear formulation is then introduced to formalize the fretting wear response whatever the tribocouple behaviour. It is shown that a local approach, focusing on wear depth analysis, is required to predict interface durability. A FEM investigation demonstrates that the wear depth kinetics can be predicted by considering the accumulated energy density. It concludes that interface durability can be related to a single energy density capacity variable (chi) defined as the maximum accumulated energy density which can be dissipated in the interface before contact failure. (C) 2007 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available