Al-Ni-Zr (aluminum-nickel-zirconium)

The investigation of the ternary system Aluminum-Nickel-Zirconium (Al-Ni-Zr) gave a partial liquidus projection for Ni-rich alloys an isothermal sections at 1100,1000, and 800°C. With starting metals of 99.99 wt.% Al, 99.995 wt.% Ni, and 99.6 wt.% Zr, arc melted six Al-Ni binary alloys and three ternary alloys with Zr and Al contents upto 13 and 20 at.%, respectively. The phase equilibria were studied with differential thermal analysis at a heating/cooling rate of 5 to 10 °C/min, wavelength dispersive spectroscopy, and x-ray diffraction. The final solidification at the Ni end is through the ternary eutectic reaction.