Effect of Ti and Sb Elements Addition on the Microstructure and Corrosion Resistance of Hot-Dip Galvanized Zn-11Al-3Mg Alloy

Abstract:

The effect of Ti and Sb elements addition on the microstructures and corrosion resistance of hot-dip galvanized Zn-11Al-3Mg alloy was investigated by scanning electron microscopy (SEM) equipped with energy dispersive spectrometry (EDS), X-ray diffraction (XRD) and Electrochemical workstation, respectively. Results showed that the grain size of the alloy was obviously refined with the addition of Ti and Sb elements, due to Al₃Ti phase as the nucleation substrate resulted in the transformation of Al-rich phase from dendrite to petal-like. In addition, the pitting corrosion resistance of the alloy has been significantly enhanced.

• Periodical: Materials Science Forum (Volume 1035)
• Pages: 630-637
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1035.630
• Online since: June 2021
• Authors: Hui Jie Sun*, Guo Rong Zhou, Ming Ming Zhang, Xue Feng Wang, Shui Yu, Ge Zhang
• Keywords: Corrosion Resistance, Electrochemical Performance, Grain Refinement, Zn-11Al-3Mg Alloy

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