Materials for Ultrafine-structuredthermal sprayed coatings
Dipl.-Ing. Thomas Wenz, Dr. Thomas Schnick, Dr.-Ing. Frank Schreiber
Ultrafine- to nanostructured coatings can be manufactured by thermal spraying in two ways in principle: First by processing an already ultrafine-structured material or by generating the structure in situ during the spray process. The article gives an example for both ways: an ultrafine-structured WC-CoCr spray powder (HVOF) and a cored wire on the base of Iron (arc spray) for a direct generation of a nano-crystalline coating.
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