The Department of Microstructure Physics and Metal Forming (Prof. Dr.-Ing. habil. Dierk Raabe) at the Max-Planek-Institut fur Eisenforschung has recently opened a new research group on Surface and Microstructure Mechanics. The group is particularly concerned with investigating the fundamentals of elastic-plastic surface and interface mechanics of polymer coated, metal-coated, and un-coated sheet steels during forming. Plastic straining of coated polycrystalline steels is typcially accompanied by the development of microstructural defects at the sample surface as well as in the interface between the steel sheet and the interface (which may be a polymer or a metal coating). These defects are due to a variety of dynamical mechanisms which are essentially induced by bulk plasticity of the steel substrate. They micro-mechanically interact with the coatings and transfer some of the metallic roughness created at the steel surface during forming through that layer to the surface.
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