Phase constitution and microstructure of the Fe–Si–Cr ternary ferritic alloys

Phase constitution and microstructure of Fe-corner of the ternary Fe–Si–Cr system are investigated particularly on the multiphase fields involving bcc disordered phase, A2 phase, and bcc ordered phases, B2 and D0 3 phases. The (A2 + D0 3 ) two-phase region is found to exist in compositions between 12 and 15 at.% Si at 10% Cr at 873 K.