Experimental study of Al–Zr–Y system phase equilibria at 773 K

Abstract

The phase relationships in the Al–Zr–Y ternary system at 773 K have been investigated mainly by means of X-ray powder diffraction (XRD) and scanning electron microscopy (SEM) with energy dispersive analysis (EDX). The 13 binary compounds, i.e. AlZr 3, AlZr 2, Al 2Zr 3, Al 3Zr 4, AlZr, Al 3Zr 2, Al 2Zr, Al 3Zr, α-Al 3Y, Al 2Y, AlY, Al 2Y 3 and AlY 2 have been confirmed. The isothermal section of the Al–Zr–Y ternary system at 773 K consists of 16 single-phase regions, 29 two-phase regions and 14 three-phase regions. No ternary compound is found in this work.