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Enhanced Corrosion Resistance of PVD CrN Coatings by ALD Sealing Layers

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Figure

Fig. 1 Schematic 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
Fig. 2 a XRD patterns and b average grain size of the pure CrN and CrN hybrid coatings with various sealing layers (CrN-Al2O3, CrN-TiO2,and CrN-Al2O3/TiO2)
Fig. 3 SEM surface images and cross-sectional images of the pure CrN and CrN hybrid coatings with various sealing layers.CrN-Al a, e, i CrN
Fig. 5 Potentiodynamic and potentiostatic curves of the SUS304 substrate, SUS304 substrate coated with CrN, CrN-AlAl2O3, CrN-TiO2 and CrN-2O3/TiO2 in 3.5 wt

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