Total hip replacement is the most effective treatment for late stage osteoarthritis. However, adverse local tissue reactions (ALTRs) have been observed in patients with modular total implants. Although detailed mechanisms of ALTRs are still unknown, fretting corrosion and associated metal ion release from CoCrMo femoral head at junction has reported to be a major factor. The purpose this study ...

Abstract Both wear and fatigue occur in fretting condition, they interact with one another during the whole process. Fretting is commonly analysed without considering effect of partial slip regime, although affects lifetime crack initiation. This paper investigates, for first time, debris on To investigate debris, characteristics regime are loading conditions. Then, initiation investigated usin...

Abstract The paper analyses the fretting and wear behavior of pure copper titanium coatings realized through cold spray. were designed produced by employing processing conditions leading to minimum porosity high hardness; these 700 °C 40 bar for Ti powders 400 30 Cu ones. low strength materials led resistance damaging optimal energy dissipation upon fretting. Due sprayed particles deformation m...

Electrical contacts involve complicated electrical, thermal, and mechanical phenomena. Fretting wear as a surface damage mechanism significantly weakens the performance of electrical contact components. In this study, numerical approach is developed to investigate electrical-thermal-mechanical-wear coupling behavior contacts. An conductance law used with current conservation model evaluate beha...

Wear particles in a hard disk drive may cause the head/disk interface to fail. We have experimentally investigated wear particle generation resulting from fretting wear between the dimple on the suspension and the gimbal spring. We have found that increasing the normal load as well as using a low friction coating reduces the formation of wear particles. INTRODUCTION Examination of failed hard d...