Preparation and property of duplex Ni–B–TiO2/Ni nano-composite coatings

Wang, S.J. and Wang, Y. and Shu, X. and Tay, S.L. and Gao, W. and Shakoor, R.A. and Kahraman, R. (2015) Preparation and property of duplex Ni–B–TiO2/Ni nano-composite coatings. International Journal of Modern Physics B, 29 (10-11). p. 1540022. ISSN 0217-9792, DOI

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The duplex Nickel-Boron-Titania/Nickel (Ni-B-TiO2/Ni) coatings were deposited on mild steel by using two baths with Ni as the inner layer. TiO2 nanoparticles were incorporated into the Ni-B coatings as the outer layer by using solid particle mixing method. The microstructure, morphology and corrosion resistance of the duplex Ni-B-TiO2/Ni nanocomposite coatings were systemically investigated. The results show that the duplex interface was uniform and the adhesion between two layers was very good. The microhardness of duplex Ni-B-TiO2/Ni coating was much higher than the Ni coating due to the outer layer of Ni-B-TiO2 coating. The corrosion resistance of the duplex Ni-B-TiO2/Ni coating was also significantly improved comparing with single Ni-B coating. The Ni-B-10 g/L TiO2/Ni coating was found to have the best corrosion resistance among these duplex coatings. This type of duplex Ni-B-TiO2/Ni coating, with high hardness and good corrosion resistance properties, should be able to find broad applications under adverse environmental conditions.

Item Type: Article
Uncontrolled Keywords: Nanocomposite coatings; Duplex coatings; Corrosion resistance
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 28 Sep 2018 08:11
Last Modified: 28 Sep 2018 08:11

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