This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Variation in Corrosion Resistance of Trivalent Chromate Coating Depending on Type of Zinc Plating Bath
Technical Paper
2006-01-1671
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Trivalent chromate coating is replacing the conventional hexavalent chromate coating applied on zinc plating. Zinc plating uses one of three types of plating baths (zincate, cyanide and chloride) according to the characteristics required of subject parts. It has been recognized that trivalent chromate coating provides different corrosion resistance depending on the type of zinc plating bath used. Zinc plating with chromate coating were analyzed to clarify the cause of the corrosion resistance variation with the type of zinc plating bath. It has been revealed that the chromate coating thickness and the condition of top SiO2 layer vary with the type of zinc plating bath, resulting in corrosion resistance variation.
Recommended Content
Authors
Citation
Watanabe, H., Oshio, M., and Kunieda, N., "Variation in Corrosion Resistance of Trivalent Chromate Coating Depending on Type of Zinc Plating Bath," SAE Technical Paper 2006-01-1671, 2006, https://doi.org/10.4271/2006-01-1671.Also In
SAE 2006 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V115-6; Published: 2007-03-30
Number: V115-6; Published: 2007-03-30
References
- Miyauchi Shigeaki “Anticorrosive Behavior of Silica in the Organic Coating on Galvanized Steel Sheet,” Iron and Steel 89 1 116 122 2003
- Suda Arata “Effects of Silica Addition on the Corrosion Resistance of Chromate Coating,” Surface Engineering 46 5 437 441 1995
- Noguchi Hiroomi et al. “Chemical Conversion of Zinc Platings Using Trivalent Chromium (III) and the Resultant Corrosion Resistance,” Surface Engineering 51 8 856 860 2000