Abstract
Fretting wear behavior of plasma sprayed hydroxyapatite (HA) coatings lubricated with bovine albumin solution has been investigated as a function of oscillatory cycle, normal load and slip amplitude. Wear mechanisms, wear volume and coefficient of friction of HA coating under lubricated fretting conditions were studied. Results indicated that the fretting wear mechanisms of plasma sprayed HA coatings under lubricated conditions were mainly delamination, pitting and abrasive wear. Bovine albumin can provide an effective lubrication during fretting. Results also showed that hot isostatic pressing (HIP) treatment could densify the coating structure, decrease the generation of fretting wear debris and improve the fretting wear resistance, therefore, it could be used as a post-treatment method for as-sprayed HA coating.
| Original language | English |
|---|---|
| Pages (from-to) | 98-102 |
| Number of pages | 5 |
| Journal | Wear |
| Volume | 230 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - May 1999 |
| Externally published | Yes |
ASJC Scopus Subject Areas
- Condensed Matter Physics
- Mechanics of Materials
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
Keywords
- Bovine albumin
- Fretting mechanism
- Fretting wear
- Hot isostatic pressing
- Hydroxyapatite coating
- Plasma spray