Summary
The system Zr-W-C was investigated by the methods of X-ray diffraction and microstructural analyses. Phase equilibria at 1500°C were determined for as-cast and annealed alloys. The carbide ZrC dissolves 34 mo%WC at 500°C; at l,950°C. the solubility ofWC increases to 40 mol.'yo. As-cast alloys contain the ω- phase, which has a cubic NaCl-type structure (a = 4.25–4.30 A), and is distributed along the 50 at.% C line at 2–10 at.% Zr. It is shown that the solubility of WC in ZrC may be even greater at temperature approaching the melting point of the alloys.
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Kuz'ma, Y.B., Fedorov, T.F. & Shvets, É.A. Phase equilibria in the system Zr-W-C. Powder Metall Met Ceram 4, 106–109 (1965). https://doi.org/10.1007/BF00777011
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DOI: https://doi.org/10.1007/BF00777011