Fig. 1From: Enhanced Corrosion Resistance of PVD-CrN Coatings by ALD Sealing LayersSchematic illustrations of the cross-sectional structure. a Pure CrN coating. b CrN-Al2O3; CrN coating with a 20 nm Al2O3 sealing layer. c CrN-TiO2; CrN coating with a 20 nm TiO2 sealing layer. and d CrN-Al2O3/TiO2; CrN coating with a 20 nm nanolaminate-Al2O3/ TiO2 sealing layerBack to article page