Phase equilibria of the Al–Zn–Fe–V quaternary system at 620 °C

Abstract

The 620 °C isothermal section of the Al–Zn–Fe–V quaternary system with the Al content fixed at 55 wt.% and the Al-rich corner of the Al–Fe–Zn ternary system at 620 °C have been determined by means of scanning electron microscopy coupled with energy dispersive X-ray spectroscopy and X-ray diffractometry. Two four-phase regions are identified in the isothermal section of the Al–Zn–Fe–V quaternary system. Two three-phase regions are found in the Al-rich corner of the Al–Fe–Zn ternary system. No new ternary and quaternary phases have been found in the present work.