日本金属学会誌

J. Japan Inst. Metals, Vol. 21, No. 4 (1957),
pp. 275-279

Studies on Cr-Mo-Fe Super-Heat-Resisting Alloys (1st Report). The Equilibrium Diagram of Cr-Mo-Fe System

Shuzo Takeda and Natsuo Yukawa


Abstract:

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°).


(Received 1956/11/20)

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