Application of PVD Coatings for Improvement of Die Performance in Copper Semi-Solid Processing
TiAlN/CrN multilayer coatings with an superlattice period of 6.1nm was applied to a proto-type high temperature segment mold for Cu semi-solid processing so that it was investigated the possibilities of TiAlN/CrN multilayer coating as a candidate protective coatings to extend the lifetime of high temperature molds and dies. Much improved performance was obtained from the TiAlN/CrN coated molds, although different behaviors were observed depending upon the type of substrate mold materials. . Improvement of mold performance was observed by TiAlN/CrN coating on AISI H13 steel, but TZM alloy with TiAlN/CrN coating was found to be the best candidate as a mold for high temperature Cu semi-solid processing.
C.G. Kang, S.K. Kim and S.Y. Lee
S. Y. Lee and S. Y. Lee, "Application of PVD Coatings for Improvement of Die Performance in Copper Semi-Solid Processing", Solid State Phenomena, Vols. 116-117, pp. 84-87, 2006