|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||High Entropy Alloys VIII
||J-112: Microstructure and Tribological Behavior of Non-equiatomic Ti-Zr-Cr-Al-Si-V and Ti-Zr-Cr-Al-Si-V-Nb Refractory High Entropy Alloys
||Harsh Jain, Yagnesh Shadangi, Vikas Shivam, Nilay Kumar Mukhopadhyay, Devendra Kumar
|On-Site Speaker (Planned)
The aim of the present work is to synthesize the non-equiatomic composition of refractory high entropy alloy by vacuum arc melting. It is shown that the calculated lattice parameters, phase stability, hardness and wear property of non- equiatomic RHEAs TiZrCrAlSiV and TiZrCrAlSiVNb are consistent with the available experimental and theoretical. The systematic alloying behavior of the alloys was followed by X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM). Despite containing many constituents, both alloys had a single-phase body-centered cubic (BCC) structure. Vickers hardness and wear rate at room temperature (RT) of the alloy calculated by Vickers hardness tester and pin on disk respectively. The theoretical density of the alloys was varying in the range of 5-5.2 gm/cc. The exceptional microhardness in these alloys is greater than any individual constituent, suggesting the operation of a solid-solution-like strengthening mechanism.
||Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume