Al-Zr-Mg Alloy

Alloy name: Al-Zr-Mg
Diagram No.: 50
Type of diagram: TTT
Chemical composition in atomic %: 4.5%Zr, 2.25% Mg, balance is Al
Alloy group: Aluminium-based alloys
Note: Treatment: Solution treated at 490 C (914 F) for 1 h and water quenched. A special DTA (differential thermal analysis) device was used to heat specimens at various rates after they had been aged at room temperature for 1 h. The solid lines are for heating rates from room temperature; the 2 dotted curves are for heating rates that started at -50C (-58 F). Characteristic points on the DTA curves were plotted on the heat rate curves and then connected to represent the lower limit of formation or dissolution of precipitates or phase transformations.
Reference: Not shown in this demo version.

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