Abstract
1. A study was made of the kinetics of the reaction between chromium carbide and molten copper-nickel alloys containing 20 and 40% nickel. 2. The dissolution rate of chromium carbide in the molten alloys investigated is controlled by diffusional transport in the liquid phase. 3. The dissolution rate of chromium carbide in a molten Cu — 20% Ni alloy is determined by the diffusional characteristics of carbon in the alloy. The diffusion coefficient of carbon in molten copper-nickel alloys containing 20% Ni was calculated. 4. During the dissolution of the higher chromium carbide in a molten Cu — 20% Ni alloy, a graphite layer forms at the interface of the two phases. No graphite deposition is observed during the dissolution of the carbide in a molten Cu — 40% Ni alloy.
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