Study of the corrosion product films formed on the surface of Mg–xZn alloys in NaCl solution
Study of the corrosion product films formed on the surface of Mg–xZn alloys in NaCl solution
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DOI：
10.1016/j.corsci.2014.07.034
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发表时间：
2014-11
影响因子：
8.3
通讯作者：
Yingwei Song;E. Han;Kaihui Dong;D. Shan;C. Yim;B. You
中科院分区：
文献类型：
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作者：
Yingwei Song;E. Han;Kaihui Dong;D. Shan;C. Yim;B. You
采用电化学测量、扫描电镜（SEM）观察和x射线光电子能谱（XPS）分析等方法研究了Mg-2Zn和Mg-5Zn合金在NaCl溶液中表面形成的腐蚀产物膜。研究发现，在浸泡初期形成致密的腐蚀产物膜，然后由于溶解反应，膜逐渐降解。在Mg-2Zn合金上形成的产品膜比在Mg-5Zn合金上形成的产品膜具有更好的防护性能，这可归因于两种合金的化学成分和显微组织的不同。
The corrosion product films formed on the surface of Mg–2Zn and Mg–5Zn alloys in NaCl solution were investigated by electrochemical measurement, scanning electron microscopy (SEM) observation and X-ray photoelectron spectroscopy (XPS) analysis. It is found that a compact corrosion product film is formed in the initial stage of immersion, and then the film gradually degrades due to dissolution reaction. The product film formed on Mg–2Zn alloy presents better protection property than that on Mg–5Zn alloy, which can be attributed to the different chemical composition and microstructure of the both alloys.