Abstract
Abstract Cr-rich oxide is the most frequently formed on Cr-containing high entropy alloys by a powder metallurgical processing route. Therefore, in this study, the pre-milling of (Ni,Cr) elements was introduced into the CoFe(CrNi)Mn model HEAs synthesized by mechanical alloying to alter the formation behavior of Cr-rich oxides. The results suggest that the pre-milling method can promote the formation of a partial FCC solid solution phase with nanostructured Ni–Cr particles, which facilitates the nucleation of nano-Cr oxides and induces the uniform distribution of fine Cr-rich oxides dispersed in the model HEAs. Besides, the formation of Cr-rich oxides and powder agglomeration can be obstructed by the subsequent secondary ball milling.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
