About this Abstract |
Meeting |
3rd World Congress on High Entropy Alloys (HEA 2023)
|
Symposium
|
HEA 2023
|
Presentation Title |
Sulfidation Behavior of NbTiCr Multicomponent Alloy |
Author(s) |
Isabela Dainezi, Brian Gleeson, Carlos Alberto Della Rovere |
On-Site Speaker (Planned) |
Isabela Dainezi |
Abstract Scope |
The new properties of multicomponent alloys show promising results that are relevant to various applications, such as strategic industries. Currently, one challenging aspect in area of materials for harsh service environments is to design alloys that are resistant to sulfidation at high temperatures. Sulfur is one of the most common corrosive contaminants in high-temperature industrial environments, including fuel and feedstocks. The principal aim of this study was to investigate the sulfidation behavior of a NbTiCr alloy in the as-cast and hot-isostatically pressed (HIP) conditions in a reducing H2S/H2 gas mixture at different temperatures. The sulfidation behavior of NbTiCr was compared to as-received HAYNES 188 at temperatures between 600 and 1100°C and exposures for 20 to 100 hours. The preliminary results show that the multicomponent alloy has significantly superior sulfidation resistance compared to the conventional 188 alloy. The modes of degradation will be compared and assessed in this presentation. |
Proceedings Inclusion? |
Planned: Metallurgical and Materials Transactions |