|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||P29: Synthesis of Equiatomic CoCrFeMnTi and CoCrFeMnNiTi Based High Entropy Alloys by Powder Metallurgy Route
||Turin Datta, Jyotsna Dutta Majumdar, Debjani Chakrabarty
|On-Site Speaker (Planned)
The traditional conventional alloying strategy was taken to a newer height when the concept of high entropy alloy was emerged in which more than five elements are added in equiatomic or near-equiatomic proportions which increases the high configurational entropy of mixing and stabilizing solid solution based microstructure. In this work, 3D transition elements based equiatomic nanocrystalline high entropy alloys having composition CoCrFeMnTi and CoCrFeMnNiTi has been synthesized using the non-equilibrium, solid-state route, known as mechanical alloying. The phase evolution as a function of milling time has been evaluated by X-Ray Diffraction technique. The nanocrystalline behavior of the alloys has been confirmed by transmission electron microscopy (TEM) and selected area diffraction pattern (SAED) technique. Futher, to understand the high temperature stability of the alloys, both CoCrFeMnTi and CoCrFeMnNiTi has been heat treated at 800 degree celsius for 24 hours and its XRD phase evolution has been carried out.