About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Element Alloys II
|
Presentation Title |
J-17: Comparison of Tensile and Compression Properties of Refractory High Entropy Alloys Developed by Natural Mixing Guided Design |
Author(s) |
Jae Kwon Kim, Sang Jun Kim, Eun Soo Park, Taeyeop Kim, Dongwoo Lee, Hyun Gi Min |
On-Site Speaker (Planned) |
Hyun Gi Min |
Abstract Scope |
Currently, as the demand for performance and efficiency improvement of high-temperature structural materials, BCC refractory high entropy alloy (RHEAs) can potentially be suitable for this demand. But it is difficult to systematic alloy design because RHEAs are composed of a large number of major elements in a similar fraction that cannot select a specific major element. Moreover, although safety-critical structural materials require sufficient strength and ductility in tension, the mechanical properties of RHEA have invariably been investigated in compression. In this study, we try to solve the above two limitations by evaluating of tensile properties of the selected RHEAs via a unique alloy design that is a method of selecting by nature upon solidification on a multi-component alloy. Finally, we clarify the difference between the two deformation modes depending on microstructural imperfections by comparing the tensile and compressive properties. Our study will bring RHEAs closer to the standard of safety-critical alloy. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, High-Temperature Materials, Characterization |