Corrosion resistance of zinc electrodeposited from acidic and alkaline electrolytes using pulse current

Zemanová, Matilda Corrosion resistance of zinc electrodeposited from acidic and alkaline electrolytes using pulse current Chemical Papers, Vol.63, No. 5, 2009, 574-578

Document type: Článok z časopisu / Journal Article
Collection: Chemical papers  

Author(s) Zemanová, Matilda
Title Corrosion resistance of zinc electrodeposited from acidic and alkaline electrolytes using pulse current
Journal name Chemical Papers
Publication date 2009
Year available 2009
Volume number 63
Issue number 5
ISSN 0366-6352
Start page 574
End page 578
Place of publication Poland
Publisher Versita
Collection year 2009
Language english
Subject 250000 Chemical Sciences
250200 Inorganic Chemistry
Abstract/Summary Corrosion resistance of zinc coatings was investigated in an accelerated corrosion test in a condensation chamber. Zinc was electrodeposited from alkaline and acidic electrolytes using direct current (DC) or pulse current (PC). The zinc coating was subsequently protected against corrosion with a chrome (III) layer. Morphology and structure of the coatings was investigated using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction analysis (XRD) before and after the corrosion test. Corrosion resistance of alkaline zinc coatings electrodeposited with DC and PC under test conditions was found to be comparable. The corrosion resistance of zinc coatings deposited from acidic electrolytes by PC was lower in comparison with corrosion resistance of zinc coatings deposited using DC.
 
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