J. Japan Inst. Metals, Vol. 4, No. 7 (1940),
pp. 189-198

The Equilibrium Diagram of the Ni-Cr-C System

Murakami Takejiro¹, Takeda Shuzo¹, Mutsuzaki Kensuke¹, Murase Tetuzo¹

Abstract:

By means of microscopic observation as well as thermal, X-ray and magnetic analyses,' the constitution of the Ni-Cr-C system was investigated, and its equilibrium diagram was determined, as shown in Fig. 4.
In this system, there exist 7 phases, each of which is found in binary systems, that is, γ(Ni), α(Cr), G(graphite), ε(Cr₄C), η(Cr₇C₃), ζ(Cr₃C₂) and κ(CrC), and no ternary compound was in existence. The following 5 non-variant reac-tions, occur in this system the last one being inferred merely through the micro-examination:-
1) Melt (M₁)_??_α+γ+ε (1305°) 2) Melt (M₂)+η+ε (1315°) 3) Melt (M₃)+η_??_γ+ζ (1260°) 4) Melt (M₄)_??_γ+G+ζ (1240°) 5) Melt (M₅)+κ_??_G+ζ (?)

(Received 1940/01/27)

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