Abstract
In this paper, pure nickel and Ni-Lu2O3 composite coatings with different content of nano-Lu2O3 particle were prepared using direct current electroplating. The morphology, texture, corrosion and high temperature oxidation resistance of the nanocomposite coating are investigated. The results show that the deposition amount of Lu2O3 particles in the composite coating increased first and then decreased with the increasing of the nano-Lu2O3 particles concentration in plating solution. The incorporation of nano-Lu2O3 particles changes the surface morphology and the preferential orientation of nickel matrix. The corrosion resistance and high temperature oxidation resistance of Ni-Lu2O3 composite coatings increase with the deposition amount of Lu2O3 particles. Compared with other samples, the composite coating of Ni/Lu2O3 (2.99 wt%) shows the best corrosion resistance and high temperature oxidation resistance.
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