Cu-Al-Ni Alloy

Alloy name: Cu-Al-Ni
Diagram No.: 140
Type of diagram: TTP
Chemical composition in weight %: 12.8% Al, 7.7% Ni, balance is Cu
Alloy group: Copper-based alloys
Note: Time-temperature-aging diagram. Effect of tempering quenched beta-phase alloy and then recooling to room temperature to induce transformation in gamma-prime martensite. Treatment: Solution treated at 950 C (1742 F) and quenched drastically into a 10% solution of caustic soda to prevent the decomposition of the body-centered cubic beta phase during cooling. Samples were reheated in a nitrite/nitrate salt bath maintained at constant temperature to within 2 deg.
Reference: Not shown in this demo version.

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