Abstract
Iron solubilities in molten Zn-Al alloys were experimentally determined at temperatures from 450 to 480 °C, a range relevant to continuous galvanizing operation. The Fe solubility was found to decrease slowly with increasing Al content in regions where ζ (FeZn13) or δ (FeZn7) is the equilibrium compound and rapidly in the region where the η (Fe2Al5Zn x ) phase is the equilibrium compound. Analyses of the experimental data indicated that Fe solubility is governed by the thermodynamic properties of the intermetallic compound in equilibrium with the molten Zn-Al alloy. A model was developed to describe the liquid surface in the Zn-rich corner of the Zn-Fe-Al system. The methodology developed in the exercise has proven applicable for the determination of the liquid surface in the Zn-Fe-Ni system.
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Tang, NY. Determination of liquid-phase boundaries in Zn-Fe-Mx systems. JPE 21, 70–77 (2000). https://doi.org/10.1361/105497100770340444
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DOI: https://doi.org/10.1361/105497100770340444