Characterisation of TiAlN PVD coatings on AZ31 magnesium alloy

Characterisation of TiAlN PVD coatings on AZ31 magnesium alloy Titanium aluminum nitride (TiAlN) coatings were deposited by radio frequency magnetron sputtering on AZ31 magnesium alloy. A microhardness tester, a surface profilometer and an electrochemical systems were used to investigate the hardness, thickness, and corrosion resistance of the coated AZ31 magnesium alloy. XPS showed the presence of different phases such as TiN, TiO2, TiON, AlN, and Al2O3. It demonstrated that TiAlN coatings improved the magnesium alloy’s surface hardness. Furthermore, TiAlN coatings also enhanced the corrosion resistance of the AZ31 magnesium alloy in 3.5 wt% NaCl solution. Corrosion current density decreased from 2.820 × 10−7 A/cm2 for the coated alloy to 1.066 × 10−5 A/cm2 for the uncoated one. Research on Chemical Intermediates Springer Journals

Characterisation of TiAlN PVD coatings on AZ31 magnesium alloy

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Springer Netherlands
Copyright © 2013 by Springer Science+Business Media Dordrecht
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
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