Diagrams of Chemical and Electrochemical Stability of Thermal-Diffusion Zinc Coatings
A. G. Tyurin* and R. G. Galin**
* Chelyabinsk State University, ul. Br. Kashirinykh 129, Chelyabinsk, 454021 Russia
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** OOO Vika-Gal Research-and-Production Plant,
ul. Molodogvardeitsev 7, Chelyabinsk, 454138 Russia
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Received April 26, 2004
Abstract — Cutsets are calculated for the Zn–Fe–O system phase diagram at 700 and 298 K and the Zn–Fe–H2O system potential–pH diagram at 298 K, 1 atm (air), and ai = 10–6 mol/l with zinc excess (
> 
) or deficiency (
< 
) in the alloy surface layer of the Zn–Fe alloy. Thermodynamics of corrosion–electro-chemical behavior of different phases in thermal-diffusion zinc coatings are discussed.
> ) or deficiency ( < ) in the alloy surface layer of the Zn–Fe alloy. Thermodynamics of corrosion–electro-chemical behavior of different phases in thermal-diffusion zinc coatings are discussed.