Wear‐protective cermet coatings for forming tools

Two innovative thermal spray techniques have been investigated to manufacture wear protective coatings for forming tools. A Twin Arc Spray process (TWAS), with an AS‐850 cored wire containing fused tungsten carbides (FTC‐FeCCrMnSi), and a High Velocity Oxy‐Fuel (HVOF) spray technique, with fine WC12Co (18 μm) and Cr3C225(Ni20Cr) (28 μm) feedstock powders were employed. Coating characterizations regarding the hardness, roughness, porosity, deposition rate and deposition efficiency were conducted. In addition, the wear and friction behavior of all coatings were analyzed.

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