About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Elements Alloys X: Structures and Modeling
|
Presentation Title |
Microstructure and Mechanical Properties of Medium-entropy Alloys with High-density Nano Precipitates |
Author(s) |
CheWei Tsai, Hung-Chih Liu, Pai-Keng Shen, Jein-Wei Yeh, Cheng-Yao Huang, Hung-Wei Yen |
On-Site Speaker (Planned) |
CheWei Tsai |
Abstract Scope |
Medium-entropy alloys (MEAs) have attracted considerable research attention because of their excellent mechanical properties. In these, the γ' phase has been utilized as a strengthening phase. However, the η phase has not been widely investigated. Herein, we explain the precipitation behavior of the η phase in a nonequimolar CoCrNiTi MEA. The MEA adopts a face-centered cubic (FCC) matrix upon η phase precipitation. Various characterization techniques were used to analyze the microstructure, phase structure, and phase composition of the as-prepared
MEA. The FCC-η interface exhibited semi-coherence. This work facilitates a novel approach to ultrahigh-strength alloy production. |
Proceedings Inclusion? |
Planned: TMS Journal: Metallurgical and Materials Transactions |
Keywords |
High-Entropy Alloys, Mechanical Properties, Characterization |