Investigation of the Partial Constitution Diagram Ti−TiAu2
Ti−Au alloys in the composition interval 0 to 66 2/3 atomic pet Au have been studied over a temperature range from 400° to 1500°C. A partial phase diagram has been established from micrographic and macroscopic observations. All intermediate phases, Ti3Au, TiAu, and TiAu2, exhibit open melting maxima. It has been observed that small additions of gold lower the allotropic transformation temperature of titanium. The β solid solution decomposes eutectoidally to α solid solution plus Ti3Au. The solubility of gold in α solid solution decreases with temperature.
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