Abstract
Titanium (Ti) composite coatings were prepared on commercially available Ti substrates via a cold-spray process. Quasicrystalline Al-Cr-Fe particles were incorporated in the cold-sprayed Ti matrices at different contents to form a new type of wear-resistant Ti composite coating. The tribological properties of the Ti composite coatings were systematically investigated using steel ball-on-disc microtribological testing. The incorporation of 10 wt% Al-Cr-Fe particles gave rise to the higher wear resistance of the Ti composite coating than that of the Ti coating due to the higher wear resistance of the Al-Cr-Fe particles than that of the Ti matrix. As a result, an increase in the Al-Cr-Fe particle content to 20 wt% increased the wear resistance of the Ti composite coating. However, the wear resistance of the Ti composite coating decreased with a further increase in the Al-Cr-Fe particle content to 30 wt% due to the significantly increased volume of micropores in the composite coating. It could be concluded that the Ti composite coating with 20 wt% Al-Cr-Fe particles had the highest wear resistance among the cold-sprayed coatings used in this study.
| Original language | English |
|---|---|
| Pages (from-to) | 616-624 |
| Number of pages | 9 |
| Journal | Tribology Transactions |
| Volume | 58 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jul 4 2015 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2015, Copyright © Society of Tribologists and Lubrication Engineers.
ASJC Scopus Subject Areas
- Mechanics of Materials
- Mechanical Engineering
- Surfaces and Interfaces
- Surfaces, Coatings and Films
Keywords
- Cold-Spray Technology
- Quasicrystal; Friction; Wear
- Ti Composite Coating