抄録
By means of microscopic observation as well as thermal and X-ray analyses, the constitution of the Cr-Mo-Fe system was investigated, and its equilibrium diagram was determined. In this system, there exist 6 phases,that is, α (b.c.c.), γ (f.c.c.), ε (Fe3Mo2, hexagonal), σ (FeMo & FeCr, tetragonal), δ (high temperature modification of Cr, f.c.c.) and a ternary compound χ (Fe36Mo10Cr12,b.c.c.); and there take place 3 non-variant reactions, Melt(M1)+σ+ε→χ(1455°), Melt(M2)+σ→α+χ(1385°) and Melt(M3)→α+χ+ε(1345°).
