Cu-11.8% Al Alloy

Alloy name: Cu-11.8% Al
Diagram No.: 723
Type of diagram: CCT
Chemical composition in weight %: 11.8% Al, balance is Cu
Alloy group: Copper-based alloys
Note: Microstructure map and CCT curves for a Cu-11.8% Al alloy. Solution treated at 900C for i hr. Adapted from Brezina 1982. Microstructure map (a) and Continuous-Cooling-Transformation (CCT) Curves (b) for a eutectoidal Cu-Al alloy. Cooling rates and times (experimentally determined) were converted to equivalent bar thicknesses in a given cooling medium, using standard thermal data. Both the map, and the CCT curves relate to the center of the bar. (Adapted from Brezina). The CCT curves and the microstructure maps are both "read" from "top to bottom". Reasonable agreement is seen between the CCT curves of Brezina [this figure] and the TTT curves which were presented in Figure. Note that alpha* denotes a mixture of martensite and bainite.
Reference: Not shown in this demo version.

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