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Influence of Annealing Temperatures on Corrosion Resistance of Magnesium Thin Film-Coated Electrogalvanized Steel

Lee, Myeong-Hoon;Lee, Seung-Hyo;Jeong, Jae-In;Kwak, Young-Jin;Kim, Tae-Yeob;Kim, Yeon-Won

  • 투고 : 2013.05.13
  • 심사 : 2013.06.07
  • 발행 : 2013.06.30

초록

To improve the corrosion resistance of an electrogalvanized steel sheet, we deposited magnesium film on it using a vacuum evaporation method and annealed the films at $250-330^{\circ}C$. The zinc-magnesium alloy is consequently formed by diffusion of magnesium into the zinc coating. From the anodic polarization test in 3% NaCl solution, the films annealed at $270-310^{\circ}C$ showed better corrosion resistance than others. In X-ray diffraction analysis, $ZnMg_2$ was detected through out the temperature range, whereas $Mg_2Zn_{11}$ and $FeZn_{13}$ were detected only in the film annealed at $310^{\circ}C$. The depth composition profile showed that the compositions of Mg at $270-290^{\circ}C$ are evenly and deeply distributed in the film surface layer. These results demonstrate that $270-290^{\circ}C$ is a proper temperature range to produce a layer of $MgZn_2$ intermetallic compound to act as a homogeneous passive layer.

키워드

Magnesium;Zinc;Corrosion resistance;Physical vapor deposition;Annealing

참고문헌

  1. M. Vlot, R. Bleeker, T. Maalman, E. van Perlstein, ILZRO and IZA, Dusseldorf, Germany, 2006.
  2. T. Koll, K. Ullrich, J. Faderl, J. Hagler, A. Spalek, Association for Iron and Steel Technology, April 4-7, Chicago, IL,United States, 2004, pp.803-812.
  3. M. H. Lee, Kor. Inst. Surf. Eng., 29 (1996) 585.
  4. B. Schuhmacher, C. Schwerdt, U. Seyfert, O. Zimmer, Surf. Coat. Technol., 163-164 (2003) 703-709. https://doi.org/10.1016/S0257-8972(02)00660-6
  5. J. Kawafuku, J. Katoh, M. Toyama, K. Ikeda, H.Nishimoto, H. Satoh, in: Proc. 5th Automotive Corr.& Prevention Conference, 21-23 October 1991,Michigan, USA: SAE paper no. 912272, Philadelphia,1991, pp. 43-50.
  6. N. C. Hosking, M. A. Strom, P. H. Shipway, C. D. Rudd, Corros. Sci. 41 (2007) 3669.
  7. RenHausbrand, Martin Stratmann, Michael Rohwerder, Corros. Sci., 51 (2009) 2107. https://doi.org/10.1016/j.corsci.2009.05.042
  8. R. Hausbrand, M. Stratmann, M. Rohwerder, Steel Res. Int., 74 (2003) 453. https://doi.org/10.1002/srin.200300212

과제정보

연구 과제 주관 기관 : Ministry of Knowledge Economy