Abstract
The polarization curves of zinc alloy anodes in Ca(OH)2 solutions have been measured by potentiodynamic method,and the composition of corrosion products were examined by X-ray-diffraction(XRD).The experimental results indicated that not only the electrochemical behavior of zinc alloy anodes were absolutely different in every alkaline solutions,but also many electrochemical parameters were determined,such as zero current potential(E0),the density of corrosion current(icorr),passive current density(ip),breakdown potential(Eb),and so on.There were three zero current potential when zinc alloy anodes in some Ca(OH)2 solutions which made passive state unstable.The graphs of E-pH about zinc alloy anodes dipped in different Ca(OH)2 solutions were drawn,and compared with the potential-pH chart for Zn-H2O system.
Keywords
zinc, activation, passivation, pH, Ca(OH)2 solutions, corrosion products
Publication Date
2007-11-28
Online Available Date
2007-11-28
Revised Date
2007-11-28
Received Date
2007-11-28
Recommended Citation
Peng-ying REN, Ji-quan HE.
Electrochemical Behavior of Zinc Alloy Anode in Ca(OH)_2 Solutions of Different pH[J]. Journal of Electrochemistry,
2007
,
13(4): 398-402.
DOI: 10.61558/2993-074X.1841
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol13/iss4/8
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons
