| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Late News Poster Session
|
| Presentation Title |
Exploring Elastic and Plastic Anisotropy in a Refractory High Entropy Alloy Utilizing Combinatorial Instrumented Indentation and Electron Backscatter Diffraction |
| Author(s) |
Abheepsit Raturi, N P Gurao, Krishanu Biswas |
| On-Site Speaker (Planned) |
Abheepsit Raturi |
| Abstract Scope |
High Entropy Alloys (HEA) are a new class of alloys formed by combining five or more principal elements. Among the various groups of HEAs, Refractory High Entropy Alloys (RHEAs) are extensively studied due to their high melting point, high hardness and strength. The higher-dimensional phase diagram of RHEA offers a vast composition space for alloy selection. However, probing these large number of alloys for mechanical properties (elastic and plastic) with existing conventional methods will be slow, laborious and inefficient. Thus, we have utilized a combinatorial approach employing instrumented micro-indentation with electron backscatter diffraction (EBSD) to predict the elastoplastic anisotropy of the RHEA. The observed anisotropy in elastoplastic behaviour of RHEA can be attributed to the activation of the different {112}<111> slip system along with the conservative movement of jog on the screw dislocation. Therefore, an approach combining micro-indentation with EBSD can be utilized to establish structure-property linkages in multicomponent RHEAs. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Entropy Alloys, Other, Other |