25 July 2014
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Corrosion performance of zinc chromate (hexa:tri Cr) complex compound coating on zinc coated components

Author(s): N.H.A. Hamid & E.B. Hamzah

Abstract:
Zinc chromate complex compound is a thin coating formed through a passivation process produced by a chemical or electrochemical treatment of a metallic surface that gives a superficial layer.

This layer which is actually a compound of the metal gives corrosion protection and has a profound influence on the properties of the coating.

The chromate film was produced from eliminating liquid which consists of three different chemical compositions comprising of chromic ions (hexa & tri Cr) and acids.

The zinc plated steel sheet were then immersed in the solution and approximately 0.5-3.0 jam thick chromate film was formed on the metal sheet surface.

It was found that pH value and immersion time have a significant eff...

Pages: 7
Size: 808 kb
Paper DOI: 10.2495/DM000561

 

 

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This paper can be found in the following book

Damage and Fracture Mechanics VI

Damage and Fracture Mechanics VI

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