Abstract
AbstractThe segregation of antimony in a batch hot‐dipped regular‐spangle galvanized coating from a Zn‐0.1Al‐0.2Sb bath was investigated. The samples were characterized by using SEM/EDS. The nature of the segregation phase was determined by XRD as βSb3Zn4. Assisted with SbZn phase diagram, the behavior of antimony during the solidification process of the Zn‐0.1Al‐0.2Sb coating is examined. It is suggested that the coating solidification proceeds in three stages. Owing to the cooling rate of batch hot dip galvanizing process smaller than that of continuous hot dip galvanizing line (CGL), the resulting structure of the segregation phase in current work is βSb3Zn4 instead of metastable ζSb2Zn3 for CGL. Copyright © 2007 John Wiley & Sons, Ltd.
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