| Abstract Scope |
Traditional methods to fabricate nanocrystalline multi-principal high entropy alloys (nc-MPEAs), such as high pressure torsion, require significant energy input, which hinder the scalable production and drive up the cost of nc-MPEAs. Electrodeposition, as another way to produce nanocrystalline metals, however, haven’t received much attention in application on MPEAs until recently. Recently, electrodeposited medium entropy alloy NiFeCo has been successfully prepared in high hardness and thermal stability. As deposited by a new technique, however, the mechanical properties of electrodeposited NiFeCo under extreme conditions remain unexplored, including creep, fatigue, or high strain rate deformation. In this work, the authors probed the indentation creep behavior of electrodeposited high entropy alloys with newly developed constant contact pressure method. The creep resistance was predicted in terms of activation volume and creep life. The creep mechanisms were also discussed, as well as the influence of elemental composition and heat treatment. |