CorroZoom webinar From Fundamental Mechanisms of Delamination to Self-Healing Coating Systems

The next CorroZoom webinar will be on 19 March and will be given by Dr. Michael Rohwerder from Max Planck Institut fuer Eisenforschung (Iron Research) in Dusseldorf, Germany. The talk is entitled “From Fundamental Mechanisms of Delamination to Self-Healing Coating Systems.” Michael has used state of the art tools to develop a detailed understanding of the most common form of organic coating failure, delamination, and also interesting coating systems that are self-healing.

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From Fundamental Mechanisms of Delamination to Self-Healing Coating Systems
Michael Rohwerder, Max Planck Institut fuer Eisenforschung (Iron Research), Dusseldorf, Germany

Abstract
Undamaged coatings can withstand corrosive environments usually for quite long exposure times. Once a defect is inflicted into them, however, corrosion-driven delamination of organic coatings can be quite fast. Delamination is a pervasive issue in coatings and protective layers, compromising structural integrity and longevity across various industries. Understanding the fundamental mechanisms behind delamination is crucial for developing effective mitigation strategies. In this talk, we delve into the intricate processes driving delamination, exploring factors such ion migration along and oxygen reduction at the interface. Building upon this foundation, we investigate innovative approaches to combat delamination through the development of self-healing coating systems. Self-healing coatings offer promising solutions to mitigate delamination, prolonging the lifespan and performance of coated surfaces. Special emphasis will be on the application of conducting polymers for self-healing coating systems and on strategies for achieving reliable and safe long-term storage.

Biography
Michael Rohwerder is head of the corrosion research group at the Max-Planck-Institut für Eisenforschung GmbH (MPIE) in Düsseldorf (Germany). He studied Physics at the University of Hamburg and obtained his doctoral degree from the University of Düsseldorf. Postdoctoral stays followed at the University of Texas at Austin and the University of Erlangen. In 2000, he joined MPIE, where he mainly works on electrochemical reactions on surfaces and at interfaces, corrosion, and self-healing coatings.
Notably, in 2007 Michael was awarded a Christian Doppler Laboratory (CDL for Diffusion and Segregation, 2008-2014), where he pioneered innovative Kelvin probe-based methods for highly sensitive and spatially resolved hydrogen detection as well as for studying electrochemical reactions at buried interfaces. As a member-at-large of the Corrosion Division of the Electrochemical Society and the editor of Materials & Corrosion, Michael actively contributes to advancing the field.
His research at MPIE spans a broad spectrum, ranging from fundamental studies on coating delamination, novel zinc alloy coatings, and self-healing organic coatings to investigations on hydrogen behavior in metals and high-temperature grain boundary oxidation. Central to his work are dedicated model experiments and the continual advancement of experimental techniques, extending his contributions also into the realm of fundamental electrochemistry. Michael’s impactful research is evidenced by his extensive publication record, comprising over 200 peer-reviewed papers. In 2023, he received the prestigious European Corrosion Medal in recognition of his outstanding contributions to the field.