| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7004402 | Wear | 2015 | 6 Pages |
Abstract
The relationship between microstructure and wear behavior of Ti6Al4V alloy and three laser-clad composite coatings (TiNi, TiNi5ZrO2, and TiNi10ZrO2) was investigated. Dry sliding wear tests were carried out using a ball-on-disk wear tester under varying loads. WC was used as the counterface material. The results showed that additions of ZrO2 refined the microstructure of TiNi from a dendritic to a flower-like microstructure. An improvement in the microindentation hardness value was also observed. Results indicated that the wear volume of clad TiNi alloy decreased with the addition of ZrO2 particles. The microstructural changes due to ZrO2 additions played a significant role in the wear performance of the clad TiNi alloy. Analysis of worn surfaces and wear debris indicated that the dominant wear mechanism for the Ti6Al4V alloy was adhesive wear with ploughing.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Babatunde Abiodun Obadele, Anthony Andrews, Peter Apata Olubambi, Mathew T. Mathew, Sisa Pityana,