|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Multi-Principal Elements Alloys X
||Friction stir processing of Non equiatomic high entropy alloy
||Neelam Meena, Satya Gowtam Dommati, Vinay Prabhakar Deshmukh, Nithyanand Prabhu
|On-Site Speaker (Planned)
It has been shown recently that by suitably tuning the composition and designing the microstructure, it is possible to incorporate multiple strengthening mechanisms in a single alloy. Friction stir processing is a severe plastic deformation method. Depending on the process parameters and the thickness of the processed sheet, different grain sizes may be obtained.
In the present work, the recently developed TWIP-TRIP assisted dual phase
Fe49.5Mn30Co10Cr10C0.5 high entropy alloy is subjected to onep-pass and multi-pass friction stir processing. The friction stir processed samples are tensile tested at different temperatures & strain rates. The obtained results are analysed and compared with that of a sample subjected to cold reduction. A two-fold increase in the yield strength and ductility can be mainly attributed to increased grain boundary/ twin boundary area per unit volume contributing to the Hall-Petch effect and enhanced strain hardening.
||High-Entropy Alloys, Mechanical Properties, Characterization