Author(s): N.H.A. Hamid & E.B. Hamzah
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...
Size: 808 kb
Paper DOI: 10.2495/DM000561
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