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http://dx.doi.org/10.5762/KAIS.2017.18.10.603

Study on the coating weight and corrosion resistance of Zinc phosphate for surface treatment of ammunition  

Kim, Myung-Hyun (Ammunition Center, Defense Agency of Technology and Quality)
Lee, Seung-Yong (Angang Plant, Poongsan Corporation)
Lee, Hyun-Hee (Ammunition Center, Defense Agency of Technology and Quality)
Lee, Young-Tae (Ammunition Center, Defense Agency of Technology and Quality)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.10, 2017 , pp. 603-610 More about this Journal
Abstract
Steel used for various industrial fields including ammunition is vulnerable to corrosion so surface treatments are required such as plating, painting and chemical conversion coating. Zinc phosphate, used for ammunition manufacturing, is used to stick the stable compound on the surface by chemical conversion of metal. The quality of phosphate coating depends on many factors such as total acidity and iron content. In this study, we studied the influence of total acidity and iron content on coating weight and corrosion resistance of phosphate coating. The surface structure of the coating becomes dense and corrosion resistance is improved with increasing iron content. However, total acidity influences only the thickness and phosphate coating weight. In conclusion, this study suggests the optimal range of total acidity and iron content to manufacture the ammunition.
Keywords
Ammunition; Zinc Phosphate; Corrosion resistance; Total Acidity; Iron Content;
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  • Reference
1 Freeman, D Brian, "Phosphating and metal pretreatment", 229, Cambridge, 1986.
2 D John, "Zinc phosphating", Metal Finishing, vol. 97, no. 5, pp. 71-86, 1999. DOI: https://doi.org/10.1016/S0026-0576(99)80761-2   DOI
3 G. D. Cheever, "Formation and growth of zinc phosphate coatings", J Paint Technol, vol. 39, no. 504, pp. 1-13, 1967.
4 S. Yawei, J. Cao, M Guozhe, Z. Tao, W. Fuhui, "The role of a zinc phosphate pigment in the corrosion of scratched epoxy-coated steel", Corrosion Science, vol. 51, no. 2, pp. 371-379, 2009. DOI: https://doi.org/10.1016/j.corsci.2008.11.015   DOI
5 J. A. Kargol, D. L. Jordan, "The influence of phosphorous alloy additions on the zinc phosphate coating formation on cold rolled steels", Corrosion, vol. 38, no. 4, pp. 201-206, 1982. DOI: https://doi.org/10.5006/1.3593865   DOI
6 D. Weng, P. Jokiel, A. Uebleis, H. Boehni, "Corrosion and protection characteristics of zinc and manganese phosphate coatings", Surface and Coatings Technology, vol. 88, no. 1-3, pp. 147-156, 1997.   DOI
7 G. Y. Li, J. S. Niu, Z. H. Jiang, "Influence of pH of phosphating bath on the zinc phosphate coating on AZ91D magnesium ally", Advanced Engineering Materials, vol. 8, no. 102, pp. 123-127, 2006. DOI: https://doi.org/10.1002/adem.200500095   DOI
8 J. F. Ying, B. J. Flinn, M. Y. Zhou, P. C. Wong, K. A. R. Mitchell, T. Foster, "Optimization of zinc phosphate coating on 7075-T6 aluminum alloy", Progress in Surface Science, vol. 50, no. 1, pp. 259-267, 1995. DOI: https://doi.org/10.1016/0079-6816(95)00060-7   DOI
9 P. E. Tegehall, N. G. Vannerberg, "Nucleation and formation of zinc phosphate conversion coating on cold-rolled steel", Corrosion Science, vol. 32, no. 5-6, pp. 635-652, 1991.   DOI
10 N. Rezaee, M. M. Attar, B. Ramezanzadeh, "Studying corrosion performance, microstructure and adhesion properties of a room temperature zinc phosphate conversion coating containing Mn 2+ on mild steel", Surface and Coatings Technology, vol. 236, pp. 361-367, 2013. DOI: https://doi.org/10.1016/j.surfcoat.2013.10.014   DOI
11 K. Nomura, Y. Ujihara, Y Matsushita, R. Kojima, Y. Sugawara, "Chemical state analysis of iron in zinc phosphate coatings by conversion electron moessbauer spectrometry", Nippon Kagaku Kaishi, 1980.9, pp. 1372-1379, 1980. DOI: https://doi.org/10.1246/nikkashi.1980.1372   DOI
12 A. A. Guenbour, A. Kacemi, "Evaluation of the corrosion performance of zinc-phosphate-painted carbon steel", Surface and Coatings Technology, vol. 113, no. 1, pp. 36-43, 1999. DOI: https://doi.org/10.1016/S0257-8972(98)00816-0   DOI