Paper Title:
The Influence of Aluminium Addition on the Microstructure of Zinc Pack Coatings
  Abstract

This work aims to investigate the feasibility of Zn-Al deposition on low alloy steels at temperatures from 400 up to 440oC by pack cementation process aiming to increase their corrosion resistance. A series of experiments were undertaken to investigate the effects of pack powder composition and the deposition temperature of the process. It was observed that the parameters of zinc content and temperature affect only the coating deposition speed, but not the phase composition of the as produced coating. Al forms an overlying layer that seals the zinc coating. In any case, the deposition of successive layers of Zn and Al is feasible with pack cementation. The corrosion performance of Zn-Al coatings formed with alternative methods is already studied and proved to be resistant in harsh environments. So the herein studied coatings are expected to be corrosion resistant. Furthermore as Al is much more resistive than Zn, these coatings are more effective than pure Zn ones.

  Info
Periodical
Solid State Phenomena (Volume 130)
Edited by
Danuta Stróż & Małgorzata Karolus
Pages
193-198
DOI
10.4028/www.scientific.net/SSP.130.193
Citation
N. Michos, D. Chaliampalias, G. Vourlias, N. Pistofidis, F. Stergioudis, "The Influence of Aluminium Addition on the Microstructure of Zinc Pack Coatings", Solid State Phenomena, Vol. 130, pp. 193-198, 2007
Online since
December 2007
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Price
$35.00
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