日期:2012-04-18 09:33
A Zn―-Ti galvanizing coating was prepared on Si-containing low--carbon steel by hot--dip galvanizing in a Zn―Ti bath．The corrosion performance and electrochemical behavior of Zn and Zn-Ti alloy galvanized steel sheets in 5％一(mass fractionl NaCl solution were studied by Tafel polarization and electrochemical impedance spectroscopy fEIS)．The results showed that the hot．dip Zn-Ti galvanized steel sheet has higher polarization resistance and electr0． chemical impedance but lower corrosion cu