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    12th International Conference on Zinc & Zinc Alloy Coated Steel Sheet - GALVATECH 2021

    21–23 Jun 2021 Virtual Conference
    Virtuel Conference
    Europe/Vienna timezone
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    Session

    Coating Alloy and Modification effects on Corrosion Behaviour

    C
    23 Jun 2021, 14:00
    Virtuel Conference

    Virtuel Conference

    Conveners

    Coating Alloy and Modification effects on Corrosion Behaviour

    • dominique thierry (French corrosion institute)
    • Vaclav Sefl

    Presentation materials

    There are no materials yet.

    1. 204. STUDY OF MANGANESE ADDITION ON THE CORROSION RESISTANCE OF GALVANIZED ZINC COATING
      Srinivasulu Grandhi (Ph. D Research Scholar)
      23/06/2021, 14:20
      Structure and Surface Analysis as well as Defect Characterization
      Oral Presentation
      This study investigates the effect of manganese addition in the galvanized zinc coating on steel. Manganese possesses more negative electrochemical potential than both zinc and iron. In addition, manganese can also provide sacrificial protection to iron like zinc. A stepwise process was used to prepare the required bath composition for coating due to a very high melting point of...
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    2. 171. CATASTROPHIC BEHAVIOR OF GALVANIZED STEEL EXPLAINED BY FUNDAMENTALS OF CORROSION SCIENCE
      Carlos Arroyave (Arroyave Consulting)
      23/06/2021, 14:40
      Fundamentals on Atmospheric Corrosion and Corrosion Modelling
      Oral Presentation
      After two experiences with the premature failure of the roof of a secondary steel factory, an approach was developed to identify the reasons for the quick failure, and consequent loss of almost one million dollars each time. Problems concerning with the depolarization of the cell Zn/Fe, the design principles to corrosion prevention, the establishment of nests of sulfates and the cycle of acid...
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    3. 22. THE EFFECT OF PHOSPHORIC ACID ADDED TO CHEMICAL CONVERSION COATING LAYER ON CORROSION PROTECTION IN SCRIBED AREAS OF ZINC-COATED STEELS
      Yuki Suzuki (NIPPON STEEL CORPORATION)
      23/06/2021, 15:00
      Fundamentals on Atmospheric Corrosion and Corrosion Modelling
      Oral Presentation
      Zinc-coated steels are utilized for home appliances, construction materials and automobiles. On zinc-coating layer, chemical conversion coating is formed. Chromate-free chemical conversion coatings generally contain phosphate compounds to prevent zinc corrosion mainly in the flat areas. On the other hand, when zinc-coating layer is damaged during the manufacturing process, the underlying steel...
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