Investigation of the isothermal section at 1000°C in the Pt-Al-Cr system

Platinum-based alloys are being developed with γ/γ' microstructures analogous to nickel-based superalloys, with potential for high temperature applications. The ternary Pt-Al-Cr system was investigated to provide data for the continued development of a thermodynamic database for the Pt-Al-Cr-Ru system. The alloys were studied in the 1000°C annealed and quenched conditions, using SEM with EDX and XRD. Isothermal sections were constructed.