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RESEARCH PAPERS

Cracking Induced by Fretting of Aluminium Alloys

[+] Author and Article Information
Z. R. Zhou

Tribology Laboratory, South-West Jiaotong University, 610031 Chengdu, P. R. China; Dépt. Matériaux-Mécanique Physique, UMR 5621, IFOS, Ecole Centrale de Lyon, 69131 Ecully Cédex, France

L. Vincent

Dépt. Matériaux-Mécanique Physique, UMR 5621, IFOS, Ecole Centrale de Lyon, 69131 Ecully Cédex, France

J. Tribol 119(1), 36-42 (Jan 01, 1997) (7 pages) doi:10.1115/1.2832477 History: Received February 16, 1994; Revised February 19, 1996; Online January 24, 2008

Abstract

Fretting-wear and fretting-fatigue loadings can both result in wear (material loss) and in crack nucleation and propagation (fatigue process). This paper deals with cracking induced by small amplitude displacements in the case of aeronautic aluminium alloys. The two sets of fretting maps are introduced: running condition fretting map is composed of partial slip (sticking), mixed fretting and gross sliding regime; material response fretting map is associated with two macro-degradation modes. Crack nucleation and propagation are analysed for every fretting regime. The mixed fretting regime appeared most detrimental with regards to fatigue cracking. Slip amplitude and normal load main effects discussed for fretting wear can be used to justify the fatigue limit decrease often obtained for fretting fatigue experiments.

Copyright © 1997 by The American Society of Mechanical Engineers
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