|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||High Entropy Alloys VIII
||Small-scale Mechanical Behavior of Single Phase and Complex High Entropy Alloys
||Saideep Muskeri, Vahid Hasannaeimi, Maryam Sadeghilaridjani, Sundeep Mukherjee
|On-Site Speaker (Planned)
High entropy alloys have attracted widespread interest due to their exceptional properties at multiple length-scales. Small-scale mechanical behavior of several single-phase and complex multi-principal high entropy alloys was investigated. Strain rate sensitivity and strain gradient plasticity was measured for fundamental understanding of deformation mechanism. The nano-mechanical behavior and twinned microstructure was explained by low stacking fault energy. Phase-specific response to mechanical loading was evaluated for thorough understanding of the origin of simultaneous high strength and good ductility in these alloys. Exceptional strength was realized for nanocrystalline high entropy alloy compared to pure metals of similar grain sizes. Grain boundary mediated deformation mechanisms led to high strain rate sensitivity of flow stress.
||Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume