MSE Colloquium: Michael Rohwerder, Zinc Alloy Coatings For Corrosion Protection: From the Basics to New Challenges

Head of research group, Molecular structures and surface modification, Max-Planck-Institut für Eisenforschung, Dusseldorf, Germany

All dates for this event occur in the past.

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264 MacQuigg Labs
105 W. Woodruff Ave
Columbus, OH 43210
United States

Abstract

Zinc coatings are widely used for high performance corrosion protection of steel. For automotive as well as construction applications the zinc coating consists essentially of pure zinc, with some minor additions of aluminum and silicon in the case of hot dip coatings. In the last two decades, however, new requirements for zinc coatings have led to large efforts to develop novel zinc based metallic coatings with increased protective properties. For instance, in order to limit contamination of modern welding robots thinner coatings are required, so that zinc evaporation is reduced. Problems are also encountered in hot stamping of high strength steel parts for increased crash protection. 
In this talk current trends in the development of new zinc alloy coatings and possible future applications are discussed. It will be shown that corrosion performance of zinc alloy coatings is a highly exciting topic and that many aspects even of the performance of standard zinc coatings are not fully understood yet. The talk will cover a broad spectrum of phenomena, from the basics of corrosion performance, over hydrogen uptake through zinc alloy coatings to their potential use in high-end self-healing coating systems.
 

Bio

Dr. Michael Rohwerder is head of a research group at the Max-Planck-Institute for Iron Research in Düsseldorf, Germany. Further, since 2008, he is head of the Christian-Doppler Laboratory for Oxidation and Segregation funded by the Christian Doppler Research Association and voestalpine Steel Division. His current research covers zinc alloy coatings, intelligent self-healing coatings, surface and grain boundary oxidation in short term annealing processes and hydrogen in metals. Dr. Rohwerder was a postdoctoral researcher in the group of Prof. A.J. Bard at the University of Texas in Austin. He then was appointed head of the “high temperature corrosion” research group at the University of Erlangen, Germany, before joining the Max-Planck-Institute in 2000.

 

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Categories: MSE Sem & ColloqEventsMSE Sem & Colloq 2014
Event Highlight
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264 MacQuigg Labs
105 W. Woodruff Ave
Columbus, OH 43210
United States