ELECTROCHEMICAL BEHAVIOR OF B30 Cu-Ni ALLOY WITH SUPER-HYDROPHOBIC SURFACE IN 3.5%NaCl SOLUTION
XU Qunjie1, 2), DENG Xianqin1, 2), PAN Hongtao1, 2), YUN Hong1, 2)
1) Key Laboratory of Shanghai Colleges and Universities for Corrosion Control in Electric Power System and Applied Electrochemistry, Institute of Energy and Environment Engineering, Shanghai University of Electric Power, Shanghai 200090
2) Shanghai Engineering Research Center of Energy-Saving in Heat Exchange Systems, Institute of Energy and Environment Engineering, Shanghai University of Electric Power, Shanghai 200090
Cite this article:
XU Qunjie DENG Xianqin PAN Hongtao YUN Hong. ELECTROCHEMICAL BEHAVIOR OF B30 Cu-Ni ALLOY WITH SUPER-HYDROPHOBIC SURFACE IN 3.5%NaCl SOLUTION. Acta Metall Sin, 2012, 48(1): 94-98.
Abstract Super-hydrophobic surface has been considered a new and promising anti-corrosion technology, recently. A super-hydrophobic film has been fabricated on Cu-Ni alloy (B30) substrates by chemical etching and self-assembly. The effects of etching process and self-assembly technology on the property of filmed B30 had been investigated by means of contact angle measurement and electrochemical test. The results show that suitable surface roughness played a vital role in preparing super-hydrophobic surface with excellent corrosion resistance in comparison with the electrochemical test results of different hydrophobic B30 surface. Moreover, the results indicated that the corrosion resistance of B30 in 3.5%NaCl solution could greatly improved by the super-hydrophobic surface (contact angle 152.8o), and the inhibition efficiency reached 96.1%.
