Abstract
The erosion–corrosion properties and interface microstructure of a Fe–B alloy that contains 3.5 wt% B in flowing liquid zinc have been investigated by electron backscattered diffraction, x-ray diffraction, and scanning electron microscopy to clarify the flowing effect of liquid zinc on erosion performance using a rotating-disk technique. The Fe–B alloy erodes at a low and steady rate in flowing liquid zinc. Flowing liquid zinc can accelerate the iron and zinc mass transfer to form Fe–Zn compounds and promote the removal of loose FeZn13. Much residual corrosion-resistant Fe2B and some erosion products coexist at the erosion interface because of the chemical and micromechanical effects that are created by flowing liquid zinc. The failure of the Fe2B corrosion-resistant skeleton in flowing liquid zinc occurs because of the loss of supporting matrix and also the formation and spread of microcracks during erosion.
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ACKNOWLEDGMENTS
The authors thank the financial support for this work from the Natural Science Foundation of China under Grant Nos. 51301128, 51271142, and 51274016, the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant Nos. 20110201130008 and 20120201120005, the National Science Foundation for Post-doctoral Scientists of China under Grant Nos. 2012M521767 and 2013T60875, Shaanxi provincial postdoctoral research project, and the Fundamental Research Funds of Xi’an Jiaotong University under Grant Nos. xjj2013038 and xjj2014167.
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Liu, G., Ma, S., Xing, J. et al. Investigation of flowing liquid zinc erosion and corrosion properties of the Fe–B alloy at various times. Journal of Materials Research 30, 727–735 (2015). https://doi.org/10.1557/jmr.2015.27
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DOI: https://doi.org/10.1557/jmr.2015.27