About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys II
|
| Presentation Title |
Microstructure and Mechanical Properties of In-situ TiC Reinforced Nb-Ta-V-Ti High Entropy Alloys |
| Author(s) |
Jeong Pyo Lee, Jeong Eun Kim, Gian Song, Jin Kyu Lee |
| On-Site Speaker (Planned) |
Jeong Pyo Lee |
| Abstract Scope |
High entropy alloys (HEAs) are defined as a class of multicomponent alloys consisting of five or more principal elements with equal or near equal compositions. HEAs prepared by mechanical alloying and subsequent consolidation process are a promising method to obtain homogeneous microstructures and enhanced mechanical properties. Recently the study of TiC particle reinforced HEA matrix composites has attracted scientists’ interest due to properties such as high-temperature strength and promising resistance to wear oxidation.
In this study, the effect of TiC particle formation on the microstructure and mechanical properties of Nb-Ta-V-Ti HEAs was investigated. The HEA matrix composites were synthesized by high-energy ball milling followed by spark plasma sintering. Structural characterization was performed using X-ray diffractometry (XRD), scanning electron microscopy (SEM) with electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). The compressive strength of HEAs was measured at room and elevated temperature with a strain rate of 1x10-3s-1. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Powder Materials, Composites |