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Tuesday, 13 September 2016

Lap-joint corrosion testing of precoated steel sheets

Published Date
Volume 75, Issue 944, pp 43–54

Lap-joint corrosion testing of precoated steel sheets

  • Daniel de la Fuente
  • Manuel Morcillo
  • José Antonio González
  • Eduardo Otero

  • Article
    DOI: 10.1007/BF02757861

    Cite this article as: 
    Chico, B., de la Fuente, D., Morcillo, M. et al. Journal of Coatings Technology (2003) 75: 43. doi:10.1007/BF02757861


    In industry, and particularly in the building construction and automotive industries, lapjoint technology for precoated steel sheet assembly has undergone rapid development. However, the durability problems associated with joints of this type are well known, i.e., premature deterioration of protective coatings (metallic, organic) and accelerated metallic corrosion of the base steel by moisture retention in the joint, crevice corrosion, etc. The authors have been involved in researching lap-joint corrosion testing to learn the behavior of materials in these joints. The precoated steel sheet materials studied were divided into two groups according to their use in two well-defined industrial sectors: building (55% Al-Zn and hot-dip galvanized, painted and unpainted) and car manufacturing (electrogalvanized and galvanneal).


    1. (1).
      Ahmed, Z. and Al-Sulaiman, F.A., “Corrosion of Cars in Eastern Coastal Environment of Saudi Arabia,”Br. Corros. J., 28, No. 2, 112 (1993).
    2. (2).
      Al-Sulaiman, F.A. and Ahmed, Z., “The Assessment of Corrosion Damage to Automobiles in the Eastern Coast Area of Saudi Arabia,”Proc. Instn. Mech. Engrs., Vol. 209, 3–8 (1995).
    3. (3).
      Rendahl, B., “Investigation of Corrosion Damage on Cars of 1994–1997. Year Models,”KI Report 2001: 8E, Swedish Corrosion Institute, Stockholm, Sweden.
    4. (4).
      Towsend, H.E., “Behaviour of Painted Steel and Aluminium Sheet in Laboratory Automotive Corrosion Tests,”Corrosion (NACE), 52, No. 1, 66 (1996).
    5. (5).
      Simko, M., Ban, S., and Roudabush, L.A., “Corrosion Behaviour of Zinc and Zinc-Alloy Coated Sheet Steels for Automotive Applications: An Overview and Initial Results,”Proc. Conf. Galvatech’95, Chicago, Sept. 17–21 (1995).
    6. (6).
      Dorsett, T.E. and Davidson, D.D., “Design of a Standard Test Coupon for Perforation Corrosion,”Technical Report No. 932366, Society of Automotive Engineers (SAE), (1993).
    7. (7).
      Moran, J.P. and Egbert, M.W., “Galvanic Corrosion of Aluminium Auto Body Sheet Coupled to Steel,” Corrosion/95, NACE, Paper No. 382, Houston (1995).
    8. (8).
      Hamm, C.D., “Corrosion Protection Measures for CFC/Metal Joints of Fuel Integral Tank Structures of Advanced Military Aircraft,”Proc. 79th Meeting AGARD Structures and Materials, Sevilla, 14.1–14.11 (1994).
    9. (9).
      Roudabush, L.A. and Dorsett, T.E., “A Review of Perforation Corrosion Testing—1980 to 1990,”Technical Report No. 912285, Society of Automotive Engineers (SAE), (1991).
    10. (10).
      ASTM B 117: “Test Method for Salt Spray (Fog) Testing,” Philadelphia.
    11. (11).
      Baboian, R., “Advances in Automotive Corrosion Resistance,”Proc. 13th International Corrosion Congress, Melbourne, Paper 076 (1996).
    12. (12).
      Stephens, M.L., “Evaluation of Corrosion Test Method,”Technical Report No. 892571, Society of Automotive Engineers (SAE), (1989).
    13. (13).
      Blakenhurst, F., “Hoogovens,”Technical Report No. 892570, Society of Automotive Engineers (SAE), (1989).
    14. (14).
      Cremer, N.D., “The Move to Cyclic Salt-Spray Testing from Continuous Salt Spray,”Anti-Corrosion Methods and Materials, 43, 16 (1996).CrossRef
    15. (15).
      Zhu, F., “Atmospheric Corrosion of Precoated Steel in a Confined Environment,” Doctoral Thesis, Royal Institute of Technology, Stockholm (2000).
    16. (16).
      Zhu, F., Persson, D., and Thierry, D., “Formation of Corrosion Products on Open and Confined Metal Surfaces Exposed to Periodic Wet-Dry Conditions—A Comparison Between Zinc and Electrogalvanized Steel,”Corrosion, 57, No. 7, 582 (2001).CrossRef
    17. (17).
      Morcillo, M., González, J.A., Almeida, E., and Puente, J.M., “Factors Influencing the Corrosion Behaviour of Coated Steel Sheets in Lap Joints,”Report 20067 EN, European Commission, Directorate-General for Research, Brussels (2002).
    18. (18).
      Chico, B., “Corrosión en Uniones Solapadas de Aceros Recubiertos,” Ph.D Thesis, Universidad Complutense, Madrid (2001).
    19. (19).
      Chico, B., de la Fuente, D., Morcillo, M., Otero, E., and González, J.A., “Lap-Joint Testing of Precoated Steel Materials,”Rev. Metal. Madrid (2002). (in press).
    20. (20).
      Fontana, M.G.,Corrosion Engineering, 3rd Edition, McGraw-Hill Book Company, New York, 39 (1987).
    21. (21).
      VDA 621-415: “Prüfung des korrosionsschutzes von kraftfahrzeuglackierungen bei zyklisch wechselder beanspruchung,” Frankfurt (1982).
    22. (22).
      ECCA Test Methods T19-ECCA, “Recommendations for Panel Design and Method for Atmospheric Testing,” ECCA (1989).
    23. (23).
      ASTM D 4585: “Testing Water Resistance of Coating Using Controlled Condensation,” West Consohocken, PA (1987).
    24. (24).
      DIN 50017: “Klimate und ihre technische anwendung. Kondenswasser-Prüfklimate,” Berlin (1982).
    25. (25).
      Otero, E., González, J.A., Chico, B., and Morcillo, M., “Direct Measurement of Corrosion Inside Iron Crevices,”Materials and Corrosion, 53 (2002).
    26. (26).
      González, J.A., Otero, E., Bautista, A., Almeida, E., and Morcillo, M., “Use of Electrochemical Impedance Spectroscopy for Studing Corrosion at Overlapped Joints,”Prog. Org. Coat., 33, 61 (1998).CrossRef
    27. (27).
      Bautista, A., González, J.A., Otero, E., and Morcillo, M., “Discrimination by EIS of Degradation Mechanisms in Lap Joints of Coated Metal Sheet,”Journal of Coatings Technology,71, No. 893, 61 (1999).CrossRef

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