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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 Corrosion Studies

    23 Jun 2021, 16:10
    Virtuel Conference

    Virtuel Conference

    Conveners

    Coating Alloy Corrosion Studies

    • Nega Setargew (BlueScope Steel, Innovation Labs)
    • Martin Fieweger (AMEPA - Angewandte Messtechnik & Prozessautomatisierung GmbH)

    Presentation materials

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    1. 3. INFLUENCE OF MINOR ADDITION OF Si AND Ti ON THE CORROSION PERFORMANCE OF ZM COATED STEEL
      Dominique Thierry (French Corrosion Institute)
      23/06/2021, 16:10
      Zinc-Aluminum-Magnesium Coatings for Automotive Application
      Oral Presentation
      Zinc and zinc-based alloys are the most important coating materials for corrosion protection of steel. The coatings are deposited by either electroplating or hot-dip galvanizing. Many research and development activities are still ongoing regarding the application of Zn and Zn-alloy coatings. In the last two decades, it turned out that zinc-magnesium (Zn-Mg) and zinc-magnesium-aluminum (ZM)...
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    2. 205. ELECTROCHEMICAL BEHAVIOR OF Si PHASES IN NOVEL ZnAlMgSi COATINGS
      Vaclav Sefl (University of Chemistry and Technology in Prague)
      23/06/2021, 16:30
      Zinc-Aluminum-Magnesium Coatings for Automotive Application
      Oral Presentation
      Novel Si-alloyed coatings provide further improvement of corrosion resistance compared to commercial ZnAlMg, yet the mechanism is still a matter of research. Latest studies focused either on binary electrochemical behavior of phases present in the coating or on accelerated and outdoor tests. To provide the link between the two and help understanding the corrosion mechanism we combined the two...
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    3. 21. THE EFFECT OF MICROSTRUCTURE ON THE CORROSION STABILITY OF ZINC ALUMINIUM MAGNESIUM ALLOYED COATED STEEL IN ATMOSPHERIC CONDITIONS
      Nathalie LeBozec (French Corrosion Institute)
      23/06/2021, 16:50
      Zinc-Aluminum-Magnesium Coatings for Automotive Application
      Oral Presentation
      Zinc coatings alloyed with low amount of aluminium and magnesium (Zn-Al-Mg) have been proved to provide better corrosion performance than conventional hot dip galvanized (HDG) steel in various atmospheres, which offers large applications in many industrial sectors such as in the automotive industry. Zn-Al-Mg coatings are characterized by a rather complex microstructure including a dendritic...
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    4. 165. ZnAlMg METALLIC COATINGS IN HARSH ENVIRONMENTS: A COMPARATIVE AND CHALLENGING STUDY
      Philippe Verpoort (ArcelorMittal Global R&D)
      23/06/2021, 17:10
      Zinc-Aluminum-Magnesium and Zinc-Aluminum Coatings for Non-Automotive Application
      Oral Presentation

      ZnAlMg (ZM) metallic coatings are already in use since the start of their development in the late 2000’s, while the production still benefits from a steady volume increase. It has been proven already that this type of metallic coatings is having an excellent corrosion resistance in divers harsh environments.

      One of the highly used markets for this type of metallic coatings is the solar...

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    5. 44. CORROSION EVALUATION OF THIN Zn-Al ALLOY COATINGS IN A SEVERE MARINE ENVIRONMENT
      Neil Gao (Teck Metals Ltd.)
      23/06/2021, 17:30
      Fundamentals on Atmospheric Corrosion and Corrosion Modelling
      Oral Presentation
      Due to the increasing demand for material and cost reduction, there has been a global trend to reduce the coating thickness of continuously galvanized sheet and coil products. As the lifetime of a metallic coating depends mainly on its coating weight, reducing the coating thickness could compromise the durability and performance of the coating. Comparatively, Zn-Al alloy coatings, such as GF...
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