|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||High Entropy Alloys V
||L-107: Structural and Mechanical Characterization of Refractory High Entropy Alloys
||Boliang Zhang, Yang Mu, Yi Zhang, Bin Zhang, Wen Jin Meng, Shengmin Guo
|On-Site Speaker (Planned)
Refractory high entropy alloys (HEAs) promise high strength and ductility, due to atomic misfits of the solid solution phases. In refractory HEAs, compositional segregation often exists in different BCC structured grains at the micron scale. To understand their mechanical behaviors, the structure and mechanical properties of several refractory HEA systems with BCC structures are investigated by XRD, TEM, and in-SEM instrumented nanoindentation. The HEA systems examined include MoNbTaVW, CrMoNbTaVW and TiMoNbTaVW. Site-specific indentation experiments are carried out on both the dendritic and inter-dendritic grains, both with BCC structures and very similar lattice parameters, but severe compositional segregation. Strain rate effects are explored. The current study offers new data and provides insights into the structure-property relationships for refractory HEAs.
||Planned: Supplemental Proceedings volume