Corrosion protection properties of vanadium films formed on zinc surfaces
来源期刊：Rare Metals2011年第2期
论文作者：ZOU Zhongli,LI Ning,and LI Deyu Department of Applied Chemistry,School of Chemical Engineering & Technology,Harbin Institute of Technology,Harbin ,China
文章页码：146 - 149
摘 要：Vanadium films were prepared on zinc surfaces by using a solution containing vanadate.Corrosion protection properties of vanadium-treated （V-treated）,chromium-treated （Cr-treated）,and untreated zinc surfaces in contact with a 3.5 wt.% NaCl solution were studied using potentiodynamic polarization,electrochemical impedance spectroscopy （EIS）,and neutral salt spray （NSS） tests.According to these results,the V-treated layer significantly improved the corrosion resistance of zinc surfaces.In comparison with the Cr-treated layer,the V-treated layer exhibited a better corrosion resistance.The composition of the V-treated layer was studied using X-ray photoelectron spectroscopy （XPS）.XPS measurements indicated that the vanadium layer formed on zinc surfaces and the vanadium-rich coating was a hydrated oxide with a composition of V2O5,VO2,and its hydrates such as V2O5·nH2O and VO（OH）2.
摘要：Vanadium films were prepared on zinc surfaces by using a solution containing vanadate.Corrosion protection properties of vanadium-treated （V-treated）,chromium-treated （Cr-treated）,and untreated zinc surfaces in contact with a 3.5 wt.% NaCl solution were studied using potentiodynamic polarization,electrochemical impedance spectroscopy （EIS）,and neutral salt spray （NSS） tests.According to these results,the V-treated layer significantly improved the corrosion resistance of zinc surfaces.In comparison with the Cr-treated layer,the V-treated layer exhibited a better corrosion resistance.The composition of the V-treated layer was studied using X-ray photoelectron spectroscopy （XPS）.XPS measurements indicated that the vanadium layer formed on zinc surfaces and the vanadium-rich coating was a hydrated oxide with a composition of V2O5,VO2,and its hydrates such as V2O5·nH2O and VO（OH）2.
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