| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2024: Process-Structure-Property Relations and New Technologies
|
| Presentation Title |
Chemistry-Structure-Property Relations in Al10Cr15(Fe3Mn)75-x(Ni)x Medium-entropy Alloys |
| Author(s) |
Jarrod Gesualdi, Peyman Asghari-Rad, Hojong Kim |
| On-Site Speaker (Planned) |
Peyman Asghari-Rad |
| Abstract Scope |
The microstructure, mechanical properties, and corrosion properties of Al10Cr15(Fe3Mn)75-x(Ni)x medium-entropy alloys (MEAs) were investigated to examine the relationship between chemistry, structure, and properties as the Ni content varied from 0 to 20 at%. This study reveals that the addition of 5 and 10 at% Ni to the initial BCC phase Al10Cr15(Fe3Mn)75 MEA leads to the formation of ordered B2-phase precipitates, resulting from the interaction between Ni and Al. Further increasing the Ni content to 15 at% results in a dual-phase structure comprising FCC and BCC phases, with B2 phase precipitates distributed throughout the BCC matrix. This dual-phase structure exhibits a high yield strength (YS) of 600 MPa, with a total elongation of 15%. By increasing the Ni content to 20 at%, the alloys display a lower YS of 300 MPa; however, they exhibit a significant improvement in ductility and corrosion resistance due to the increased fraction of the FCC phase. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, High-Entropy Alloys, Electrometallurgy |