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An Evaluation of Cosmetic Corrosion Performance of Zinc and Zinc Alloy Coated Steels
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Abstract
A comparison of the cosmetic corrosion performance of zinc and zinc-iron alloy coated steels is made. Cosmetic corrosion can be defined in terms of paint creepage/blistering, red rust, and paint adhesion. Traditional scribe-type tests adequately address creepage and rusting, but do not adequately address paint adhesion. A new lab procedure called the Chipping Corrosion Test was used to assess paint adhesion of coated steels processed under various phosphate conditions. A review of the relative performance of zinc and zinc alloy coated steels in traditional scribed panel corrosion tests and the new chipping corrosion lab procedure is presented. Results of the Chipping Corrosion Tests showed significant differences in material performance when processed under plant conditions that were not evident under laboratory process conditions, or in traditional scribe-type tests.
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Authors
Citation
Gray, B., Shaffer, R., Stephens, M., and Davidson, D., "An Evaluation of Cosmetic Corrosion Performance of Zinc and Zinc Alloy Coated Steels," SAE Technical Paper 862014, 1986, https://doi.org/10.4271/862014.Also In
References
- Wiggle, R. Smith, A. Petrocelli, J. “Paint Adhesion Failure Mechanisms on Steel in Corrosive Environments.” J. Paint Tech. 40 174 1968
- Miyoshi, Y. Kitayama, M. Nishimura, K. Naito, S. “Cosmetic Corrosion Mechanism of Zinc and Zinc Alloy Coated Steel Sheet for Automobiles.” SAE Paper 85007 Presented at the SAE International Congress and Exposition February 25 March 1 1985
- Johnson, W. R. Vrable, J. B. “Corrosion Resistance and Paintability of Zinc and Zinc-Alloy Coatings for Automotive Sheet.” SAE Paper 840213 Presented at the SAE International Congress and Exposition February 27 March 2 1984
- Miyoshi, Y. Kitayama, M. Ito, Y. Koyahara, H. “A Study on Corrosion Test Methods for Automotive Steel Sheet.” SAE paper 840210 Presented at the SAE International Congress and Exposition February 27 March 2 1984
- Vrable, J. B. “Comparison of Corrosion Performance of Zinc and iron-Zinc Alloy Coatings in Accelerated, Atmospheric, and Highway Automotive Tests.” SAE Paper 850002 Presented at the SAE International Congress and Exposition February 25 March 1 1985
- Adaniya, T. Hara, T. Sagiyama, M. Watanabe, T. Honma, T. “Corrosion Resistance of Zn-Fe Alloy Electroplated Steel.” Presented at the '85 ASM International Conference on Surface Modifications and Coatings October 14-16 1985
- Wakano, S. Sakoda, A. Nishihara, M. Kurimoto, T. Hoboh, Y. “Cosmetic Corrosion Performance of Zinc Alloy Steel Sheets in Automotive Body.” Presented at the '85 ASM International Conference on Surface Modifications and Coatings October 14-16 1985
- Stephens, M. L. Davidson, D. D. Shaffer, R. J. “Development of the Chipping Corrosion Test.” Presented at 1986 SAE Automotive Corrosion and Prevention Conference December 8-10 1986
- Miyoshi, Y. Oka, J. Maeda, S. “Fundamental Research on Corrosion Resistance of Precoated Steel Sheets for Automobiles.” J.I.S. March 1983
- Takahashi, H. Shirogane, Y. Matsudo, K. Adaniya, T. Omura, M. “Corrosion Under Paint Film of Various Galvanized Steels.” SAE Paper 800145 Presented at the SAE International Congress and Exposition February 25-29 1980