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Journal of Materials Science

, Volume 30, Issue 6, pp 1617–1620 | Cite as

Studies on the presence of copper in the galvanized coating on weathering steel and the adherence characteristic of the protective copper complex formed on galvanized weathering steel

  • A. K. Bhattacharjee
  • I. Singh
Papers

Abstract

Following the hot-dip process for zinc coating on weathering steel, the galvanizing bath was found to have picked up copper. The galvanizing bath was observed to pick up Cu from the weathering steel at an average rate of 1.83×10−3% s−1m−2 at 452±2‡C. EDAX/SEM studies exhibited a concentration gradient of copper to exist across the thickness of the galvanized coating on weathering steel. XRD studies revealed the formation of a protective copper complex, {Cu[(OH)2Cu]3}SO4, on galvanized coating containing 0.739% Cu, when exposed in marine and industrial atmospheres. The adherence characteristic of the copper complex to the galvanized coating was found to be very satisfactory.

Keywords

Polymer Copper Atmosphere Zinc Average Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    J. C. Hudson, J. Iron & Steel Inst., 196 (1960) 333.Google Scholar
  2. 2.
    D. M. Buck, J. Ind. Engg. Chem., 5 (1913) 447.CrossRefGoogle Scholar
  3. 3.
    D. M. Buck, Proc. ASTM 19 (1919) 224.Google Scholar
  4. 4.
    H. R. Copson, Proc. ASTM 45 (1945) 554.Google Scholar
  5. 5.
    W. H. J. Vernon, J. Iron & Steel Inst., 196 (1960) 335.Google Scholar
  6. 6.
    W. H. J. Vernon, J. Iron & Steel Inst., 196 (1960) 335.Google Scholar
  7. 7.
    JCPDS, Pennsylvania, Powder Diffraction File No. 13-398 (1972) 523.Google Scholar

Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • A. K. Bhattacharjee
    • 1
  • I. Singh
    • 1
  1. 1.Corrosion Protection DivisionNational Metallurgical LaboratoryJamshedpurIndia

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