| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys IV: Mechanical Behavior
|
| Presentation Title |
Impact of V and Pd Additions on the Strength and Microstructure of CrCoNi Alloy |
| Author(s) |
Pedro Fernandes Oliveira, Francisco Coury, Claudemiro Bolfarini |
| On-Site Speaker (Planned) |
Pedro Fernandes Oliveira |
| Abstract Scope |
Despite extensive studies on the equiatomic CrCoNi alloy, many combinations remain unexplored. This study added V and Pd to the CrCoNi system, creating Cr30Co30Ni30V10 and Cr30Co30Ni30Pd10 alloys, both with single-phase FCC structures. Adding V and Pd enhanced hardness, yield strength, and tensile strength compared to the equiatomic alloy, attributed to solid solute strengthening. The Pd-containing alloy showed a more significant strength increase due to a higher atomic mismatch in the CrCoNi lattice. This mismatch led to greater crystal lattice distortion, increasing friction stress and Peierls potential for dislocation motion. Thus, the addition of V and Pd significantly boosted the mechanical strength of the CrCoNi alloy. These findings suggest that further exploration of alloy combinations could yield even more durable materials for structural applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Other |