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Meeting Materials Science & Technology 2019
Symposium Advances in Zinc-coated Sheet Steel Processing and Properties
Presentation Title P3-85: The Effect of Zn-Mg Interlayer on the Microstructure and Corrosion Resistance of PVD-processed Coatings
Author(s) Kyoung Pil Ko, Dong Yoeul Lee, Kyung Hoon Nam, Young Jin Kwak, Yonghwa Jung, Seok Jun Hong, Woo Sung Jung, Mun Jong Eom, Sang Hyeon Lee
On-Site Speaker (Planned) Kyoung Pil Ko
Abstract Scope As an alternative to conventional galvanizing processes, we focused to a new concept of coating process, which is called Electro Magnetic Heating (EMH)-Physical Vapor Deposition (PVD). Using the PVD process, we have developed Zn or Zn-Mg coated steel sheets. To optimize anti-corrosion and coating adhesion properties, we also manufactured Zn/Zn-Mg/Zn triple layer. Compared to Zn coated steel sheets, the corrosion products of Zn/Zn-Mg/Zn coating were almost composed as dense simonkolleite (Zn5(OH)8Cl2ĚH2O) phase. In the Zn/Zn-Mg/Zn multi-layer structure, the initial corrosion products of Zn are promoted to the simonkolleite phase by Mg ions eluted from Zn-Mg layer. As expected Zn/Zn-Mg/Zn triple layer coated steel sheets with a formation of stable simonkolleite phase represented much higher corrosion properties than pure Zn coatings. In this study, we introduce our newly-developed PVD pilot plant system and the relationship between the corrosion tendency of PVD Zn coatings with the addition of Mg content.
Proceedings Inclusion? Definite: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Application of Machine Learning to the Development of New Zn-based Coatings with Low Melting Temperature for Automotive Steels
Development of a New Grade of Galvanized Direct Hot Press Hardenable Steel
Effect of Liquid Metal Embrittlement on Mechanical Behavior of Advanced High Strength Steel Spot Welds at Ambient and Low Temperatures
Influence of Treatment Regimes in the Conditions of SHS on the Development of Steel
P3-85: The Effect of Zn-Mg Interlayer on the Microstructure and Corrosion Resistance of PVD-processed Coatings
P3-86: Effect of the Microstructure Development on Cracking Phenomena in Hot-Dip Zn-Al-Mg Alloy Coatings on IF Steel
P3-87: Obtaining Zinc Coatings on a Sheet Steel in SHS Conditions
P3-88: Control of Zinc Coatings Obtained under SHS Conditions
P3-89: Study on the Environment-friendly Coating Technology for Hot-dip Galvanized Steel Sheet with High Humidity Resistant
The Effect of Coating Process on Liquid Zn-assisted Embrittlement of TRIP Steel
The Influence of Electrode Geometry on the Liquid Metal Embrittlement Cracking in Resistance Spot Welding of Advanced High Strength Steel

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