| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys II
|
| Presentation Title |
J-10: An Investigation on Structure-property Correlation in TiVZrNb Light-weight High-entropy Alloy |
| Author(s) |
Juree Jung, Jinwoo Seok, Jongtae Kim, Songyi Kim, Jiwoon Lee, Gian Song, Jaeyeol Jeon, Junhee Han |
| On-Site Speaker (Planned) |
Juree Jung |
| Abstract Scope |
Refractory high-entropy alloys (RHEA) with a bcc structure which is represented by the TiNbZrHfTa alloy show excellent mechanical properties not only at room temperature but also at elevated temperatures. However, RHEAs have relatively high density (ρ ≥ 9.0 g/cm3) and consist of costly metals, and therefore it is limited to be applied as a structural material.
In this study, TiVZrNb light-weight HEAs (ρ ≤ 6.0 g/cm3) are developed. The alloys are designed to have single bcc structure and higher atomic size misfit(δ) than TiNbZrHfTa (δ = 4.9 %) alloy.
The correlation between the structure and mechanical properties of the light-weight RHEAs is investigated in terms of a role of atomic size misfit in lattice distortion and solid solution strengthening. The local lattice distortion was analyzed using X-ray diffraction and Pair Distribution Function (PDF) method. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Other |