Surface Characterization of Al Coated Steel Treated with Cerium Nitrate

Ce화합물로 표면처리한 Al도금강판의 표면 분석 연구

  • Lee, Do-Hyung (Advanced Analytical Laboratory, Research Institute of Industrial science and Technology)
  • 이도형 (포항산업과학연구원 재료물성분석팀)
  • Received : 2001.09.27
  • Published : 2001.12.25

Abstract

In this study, cerium nitrate was used as an alternative to chromate for the surface-treatment of Al coated steel to improve the corrosion resistance. The surface of Al coated steel was characterized by means of a X-ray photoelectron spectroscopy(XPS). It was found that cerium on the surface of Al coated steel had a mixture of oxidation states such as Ce(+4) and Ce(+3), and the relative concentration of each state was 57 % and 43 %, respectively. The surface film consisting of these cerium compounds played an important role for achieving the corrosion resistance of Al coated steel.

Keywords

AI coated steel;cerium nitrate;surface characterization

References

  1. J. Cryst. Growth v.117 R.H. Mauch;K.O. Velthaus;G. Bilger;H.W. Schock
  2. 알루미늄도금강판의 품질향상 조남웅
  3. Br. Corrosion J. v.19 G.D. Wilcox;D.R. Gabe
  4. Br. Corrosion J. v.22 G.D. Wilcox;D.R. Gabe
  5. Corrosion Sci. v.29 K. Kurosawa;T. Fukushima
  6. Surf. Coat. Technol. v.106 E. Almeida;T.C. Diamantino;M.O. Figueiredo;C. Sa
  7. Plat. Surf. Finish v.82 no.6 J.L. Fang;J.K. Wang;T.Q. Liu;Y. Wu
  8. Br. Corrosion J. v.18 D. Bijimi;D.R. Gabe
  9. Plat. Surf. Finish. v.81 no.11 P.T. Tang;G. Bech-Nielsen;P. Moller
  10. Metal Finish v.86 no.9 G.D. Wilcox;D.R. Gabe
  11. Corrosion Sci. v.28 G.D. Wilcox;D.R. Gabe;M.W. Warwick
  12. J. Appl. Electrochem. v.29 G.M. Treacy;G.D. Wilcox;M.O.W. Richardson
  13. Metal Finish v.89 no.9 B.R.W. Hinton
  14. Surf. Coat. Technol. v.35 D.R. Gabe;S.E. Gould
  15. Surf. Coat. Technol. v.140 L.S. Kasten;J.T. Grant;N. Grebasch;N. Voevodin;F.E. Amold;M.S. Donley
  16. Surf. Coat. Technol. v.140 X.F. Yang;D.E. Tallman;V.J. Gelling;G.P. Bierwagen;L.S. Kasten;J. Berg
  17. Materials Forum v.9 B.R.W. Hinton;D.R. Arnott;N.E. Ryan