Phase Diagrams
Nickel-Chromium (Ni-Cr) Phase Diagram
Figure 1 shows the nickel-chromium phase diagram calculated with Thermo-Calc, coupled with SBIN2 thermodynamic database.
According to the Ni-Cr phase diagram, the melting point of nickel and chromium at the pressure of 101325 Pa is 1455°C and 1907°C, respectively. The Ni-Cr binary system has a eutectic reaction at 1345°C, the eutectic composition being 51 wt. % Cr. Two solid solutions — face-centered cubic (FCC) nickel and body-centered cubic (BCC) chromium — are formed during the eutectic reaction.
Figure 1. Ni-Cr phase diagram shows which phases are to be expected at equilibrium for different combinations of chromium content and temperature. The Ni-Cr phase diagram was calculated with Thermo-Calc, coupled with SBIN2 thermodynamic database.
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• The phase diagram of Nickel-Chromium binary system
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