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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.42  No.12 (2001)  >  pp.2567-2571

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A Kinetic Study on the Fe-Zn-P Coatings by Electrodeposition

Jong-Gwan Ahn1), Jae-Woo Ahn2) and Man-Seung Lee3)
1) Minerals and Materials Processing Division, Korea Institute of Geoscience and Mineral Resources
2) Dept. of Advanced Materials Sci. & Eng., Faculty of Engineering, Dae Jin University
3) Dept. of Advanced Material Sci. & Eng., Faculty of Engineering, Mokpo National University

A kinetic study on the electrodeposition of Fe–Zn–P ternary alloys onto steel in chloride solutions was carried out using a rotating disc geometry. Mass transfer through diffusion layer controlled the deposition rates of zinc onto steel, and those of iron and phosphorus were controlled by the rates of both electrochemical reaction and mass transfer. The zinc content in the Fe–Zn–P alloy increased with stirring speed and voltage. However, iron content in the Fe–Zn–P alloy decreased with speed and voltage. The phosphorus content is almost constant with respect to stirring speed in the lower voltage range but decreased slightly with stirring speed in the higher voltage range.

kinetic, Fe-Zn-P, electrodeposition, activation energy, mass transfer, rate constant

Received: September 07, 2001
Accepted: October 05, 2001 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals



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