Behaviour of shot peening combined with WC-CoHVOF coating under complex fretting wear and fretting fatigue loading conditions

被引：53
作者：
Kubiak, K.
Fouvry, S.
Marechal, A. M.
Vernet, J. M.
机构：
[1] CNRS, Lab Tribol & Dynam Syst, Ecole Cent Lyon, UMR 5513, F-69134 Ecully, France
[2] SNCF, Agence Essai Ferroviaire, F-94407 Vitry Sur Seine, France
来源：
SURFACE & COATINGS TECHNOLOGY | 2006年 / 201卷 / 07期
关键词：
fretting fatigue; fretting wear; cracking modelling; shot peening;
D O I：
10.1016/j.surfcoat.2006.08.094
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This study investigated the fretting and fretting fatigue performance of tungsten carbide-cobalt (WC-Co) HVOF spray coating systems. Fretting wear and fretting fatigue tests of specimens with shot peening and WC-Co coatings on 30NiCrMo substrates were also performed. The WC-Co coating presents very good wear resistance by decreasing the energy wear coefficient (alpha) under fretting conditions by more than 9 times. The tested coating reduces crack nucleation under both fretting and fretting fatigue situations. Finally the crack arrest conditions are evaluated by the combined fretting and fretting fatigue investigation. It is shown and explained how and why this combined surface treatment (i.e., shot peening and WC-Co) presents a very good compromise against wear and cracking fretting damage. (c) 2006 Published by Elsevier B.V.
引用
收藏
页码：4323 / 4328
页数：6
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