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Effects of In Additions on Corrosion Resistance and High-TemperatureOxidation Resistance of Zn4Al3Mg Solder
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College of Material Science and Engineering,Beijing University of Technology,College of Material Science and Engineering,Beijing University of Technology,College of Material Science and Engineering,Beijing University of Technology,College of Material Science and Engineering,Beijing University of Technology,College of Material Science and Engineering,Beijing University of Technology

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    Abstract:

    Electrochemical corrosion behaviors of Zn4Al3Mg-xIn solder alloys were studied in this work by potentiodynamic polarization measurements. And the high-temperature oxidation resistance of the solders was also investigated by thermogravimetric analysis (TGA). The results show that: the corrosion potential of Zn4Al3Mg solder is less than -1.15V, which means the corrosion tendency of Zn4Al3Mg-xIn alloys can not be neglected, and the corrosion potential decreased with the increase of In content. Obvious regional corrosion and pitting corrosion were observed on the surface of Zn4Al3Mg-xIn alloys by SEM.The TGA results indicate that slow progress of oxidation took place at 260 ℃, Zn4Al3Mg-xIn alloys show good oxidation resistance.

    Reference
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    [7] Wang Hui(王 慧), Xue Songbai(薛松柏), Chen Wenxue(陈文学) et al. Rare Metal Materials and Engineering(稀有金属材料与工程) [J], 2009,38(12),2187
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[Yan Xin, Yang Xiaojun, Hu Wei, Fu Xilin, Lei Yongping. Effects of In Additions on Corrosion Resistance and High-TemperatureOxidation Resistance of Zn4Al3Mg Solder[J]. Rare Metal Materials and Engineering,2017,46(7):1994~1997.]
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History
  • Received:March 26,2015
  • Revised:April 13,2015
  • Adopted:June 11,2015
  • Online: November 14,2017