Study of corrosion performance of electrodeposited nanocrystalline Zn–Ni alloy coatings
Study of corrosion performance of electrodeposited nanocrystalline Zn–Ni alloy coatings
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DOI：
10.1016/j.corsci.2012.02.012
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发表时间：
2012-06
影响因子：
8.3
通讯作者：
S. H. Mosavat;M. H. Shariat;M. Bahrololoom
中科院分区：
文献类型：
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作者：
S. H. Mosavat;M. H. Shariat;M. Bahrololoom
用交流阻抗谱和极化曲线技术研究了碱性溶液中电沉积纳米晶锌镍合金镀层的腐蚀性能。比较了不同镍含量的纳米晶合金镀层和微晶锌镍合金镀层的性能。纳米晶锌镍合金镀层表面形成的腐蚀产物稳定，具有较好的防护性能，优于微晶镀层。镍含量为17.62wt.%，晶粒度为37 nm的纳米晶锌镍合金镀层性能最好。纳米晶合金涂层的耐蚀性与其化学成分有关。
The corrosion performance of nanocrystalline Zn–Ni alloy coatings electrodeposited from an alkaline bath using direct current has been investigated using EIS and polarization curves technique. Performance of these nanocrystalline alloy coatings with various Ni content was compared to that of microcrystalline Zn–Ni alloy. The corrosion product formed on the nanocrystalline Zn–Ni alloy coatings is stable and protective which proves to be better compared with microcrystalline. The nanocrystalline Zn–Ni alloy with 17.62wt.% Ni and grain size 37nm gives the best performance of the Zn–Ni alloy coatings tested. The corrosion resistance of nanocrystalline alloy coatings depends on the chemical compositions.