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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

    Challenges Galvanizing 2nd and 3rd Generation AHSS

    22 Jun 2021, 16:10
    Virtuel Conference

    Virtuel Conference

    Conveners

    Challenges Galvanizing 2nd and 3rd Generation AHSS

    • Jean-Michel Mataigne (Arcelormittal)
    • Akihiro Sengoku

    Presentation materials

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    1. 13. CHALLENGINGS IN GALVANNEALING AHSS AT AN INDUSTRIAL HOT DIP GALVANIZING LINE
      Frances Bleich (ArcelorMittal USA)
      22/06/2021, 16:10
      Challenges in Galvanizing Advanced High Strength Steels (GI, GA,…)
      Oral Presentation

      Arcelor Mittal Cleveland Hot Dip Galvanizing line produces 260,000 metric tons of Galvannealed AHSS products (GA) annually for automotive customers. New AHSS grades and thickness gauges are under constant development for automotive applications to meet the future automotive fuel efficiency standards. The use of alloy elements such as Manganese, Silicon and Aluminum in Dual Phase and TRIP...

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    2. 160. U. S. STEEL XG3 – 3rd GENERATION STEEL: CUSTOMER-FRIENDLY CHEMISTRY, PROPERTIES, AND MANUFACTURABILITY ENABLED BY UNIQUE PROCESSING
      Matthew McCosby (United States Steel Corporation)
      22/06/2021, 16:30
      Automobile Application - Forming, Joining, Painting and Final Properties
      Oral Presentation
      Hot-dip galvanized (GI) and galvanneal (GA)-coated third generation steels have been developed and commercialized at minimum tensile strength levels at both 780 and 980 MPa. These coated steels feature a combination of superior formability which, with targeted steel compositions and unique processing, have been shown to result in more customer-friendly properties and excellent residual...
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    3. 39. EFFECT OF STEEL SUB-SURFACE STRUCTURE ON MECHANICAL PROPERTIES OF GALVANIZED 3rd GENERATION ADVANCED HIGH STRENGTH STEELS
      Anirban Chakraborty (ArcelorMittal)
      22/06/2021, 16:50
      Challenges in Galvanizing Advanced High Strength Steels (GI, GA,…)
      Oral Presentation
      In order to meet the demands for improved safety, fuel economy and comfort from the automotive industry, various 3rd Generation (3G) advanced high strength steels (AHSS) with the product of TS (Tensile Strength) and TEL (Total Elongation) higher than 10GPa% have been developed. To guarantee their use as auto body parts, corrosion resistance has been assured by zinc coating on the steel surface...
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    4. 17. EFFECT OF CGL-COMPATIBLE HEAT TREATMENTS ON THE SELECTIVE OXIDATION OF A 0.15C-6Mn-2Al-1Si THIRD-GENERATION ADVANCED HIGH STRENGTH STEEL
      Daniella Pallisco (Centre for Automotive Materials and Corrosion, McMaster University)
      22/06/2021, 17:10
      Challenges in Galvanizing Advanced High Strength Steels (GI, GA,…)
      Oral Presentation
      The present paper will summarize the selective oxidation and reactive wetting results obtained for a prototype medium-Mn 0.15C-6Mn-2Al-1Si 3G AHSS after CGL-compatible thermal processing. It was previously determined that 3G AHSS mechanical property targets of 24,000 UTS x total elongation < 40,000 MPa% could be achieved using CGL-compatible heat treatments by annealing from a 80% martensite...
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