About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Element Alloys III: Mechanical Behavior
|
Presentation Title |
D-1: Enhancing Mechanical Properties of a Medium-Entropy Alloy by Regulating Mo Addition
|
Author(s) |
Chang-Yu Hung, Stoichko Antonov, Paul Jablonski, Martin Detrois |
On-Site Speaker (Planned) |
Chang-Yu Hung |
Abstract Scope |
Some multi-principal element alloys (MPEAs), including equiatomic, single-phase CrCoNi, and CrCoFeMnNi are now widely recognized for their remarkable combinations of pronounced hardening rates, high ductility, and exceptional fracture toughness at room and cryogenic temperatures. To push the limit of the hardenability of the medium-entropy alloy, the strategies associated with local lattice distortion or stacking fault energy (SFE) reduction that promote compositional heterogeneity and local defect dynamics require further investigation. A series of MPEAs with a nominal composition of Ni35Co35Cr30-xMox (x value in atomic ratio, x= 0, 5, and 10) were designed. Uniaxial tensile tests and loading-unloading-reloading (LUR) were carried out to understand the effect of alloying Mo that significantly enhances the strength and strain hardening capability of the alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, High-Entropy Alloys, Characterization |