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Characterization of the surfaces of good and poor paintability cold-rolled steel

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Abstract

Cold-rolled steel samples which have good and poor painted salt spray resistance have been shown to have significantly different surface characteristics. The secondary elec-tron image of the poor paintability steel is characterized by a discontinuous dark phase which occurs predominately on the elevated surface regions. There is also a higher car-bon/iron ratio on the surface of the poor paintability steel than on the surface of the good paintability steel. The surface carbon on both the good and poor paintability steel is an organic compound. A comparison of the poor paintability steel surface with a graphite contaminated steel surface indicates that the contaminant associated with poor painta-bility is not graphite.

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Author information

Authors and Affiliations

  1. Metallurgical Division, Republic Steel Research Center, 44131, Cleveland, OH

    J. A. Slane (Research Metallurgist)

  2. Idaho National Engineering Lab., Allied Chemical Corp., 83401, Idaho Falls, ID

    S. P. Clough (Senior Research Engineer)

  3. Coated Products Division, Republic Steel Research Center, 44131, Cleveland, OH

    J. Riker-Nappier (Supervisor)

Authors
  1. J. A. Slane
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  2. S. P. Clough
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  3. J. Riker-Nappier
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Additional information

S. P. CLOUGH, formerly Research Metallurgist, Metallurgical Division, Republic Steel Research Center

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Slane, J.A., Clough, S.P. & Riker-Nappier, J. Characterization of the surfaces of good and poor paintability cold-rolled steel. Metall Trans A 9, 1839–1842 (1978). https://doi.org/10.1007/BF02663417

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  • DOI: https://doi.org/10.1007/BF02663417

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