Study on the Corrosion Behaviors of MAO Coated on TC4 Titanium Alloy
2012 ◽
Vol 518-523
◽
pp. 632-636
Keyword(s):
This paper provides the method of calculating the film pore area and comparing the density of the looser and compact layer by AC impedance, then to compare the corrosion resistance of the film by comparing the pore area and the dielectric constant. The resistance of the film decreases fellow the soaking time extending, the capacitance of the loose and compact layer increases with the soaking time extending. The capacitance of the compact layer is smaller than that of the loose layer.