About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Honorary Symposium in Celebration of Prof. Michel Barsoum’s 70th Birthday
|
| Presentation Title |
O-2: Kerosine-Fuelled High Velocity Oxy-Fuel (HVOF) Ti2AlC Coating on P91 Steel |
| Author(s) |
Milos Dujovic, Aleksandar Maslarevic, Gordana Bakic, Ankit Srivastava, Miladin Radovic |
| On-Site Speaker (Planned) |
Milos Dujovic |
| Abstract Scope |
A class of ternary carbides and nitrides known as MAX phases combine some of the best attributes of metals and ceramics. Specifically, they are refractory yet thermal shock-resistant. Additionally, the Ti2AlC MAX phase forms stable and protective oxide layers; thus, it is a good candidate for protective coatings for high-temperature applications. This study uses kerosene-fueled High-Velocity Oxy-Fuel (HVOF) spraying to deposit Ti2AlC onto P91 steel substrates as environmental barrier coatings. The microstructure, mechanical properties, and oxidation response of the coatings are characterized. Our results show that the Ti2AlC phase partially decomposes and oxidizes during HVOF spraying. Nonetheless, the resultant coatings remain stable and bonded to the substrate, thus providing long-term oxidation resistance at temperatures above 500°C. |