期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 20, 期 -, 页码 2323-2334出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2022.07.184
关键词
Nanocomposite; Corrosion resistance; Deposition mechanism; Hardness; Metallic coating
资金
- Qatar University Grants [IRCC-2020-006, IRCC-2022-491]
- Fundacao para a Ciencia e a Tecnologia [CQE-UIDB/00100/2020, UIDP/00100/2020, LA/P/0056/2020]
- Qatar National Library
Nickel-based coatings suffer from inferior mechanical properties, but this study successfully synthesized Ni-P-B4C nanocomposite coatings with improved properties. By adding boron carbide nanoparticles, the structural, morphological, mechanical, and electrochemical properties of the coatings were significantly enhanced. The nanocomposite coatings also exhibited excellent corrosion resistance and superior mechanical properties, making them attractive for various industries.
Nickel-based coatings are well known for their good corrosion resistance performance. However, these materials suffer from inferior mechanical properties that limit their wider application. This work investigates the synthesis, and performs an exhaustive characterization, of Ni-P-B4C nanocomposite coatings developed through conventional electrode -position using a modified Watts bath. The study examines the effect of an increase in the concentration of boron carbide nanoparticles (BCNPs) on the structural, morphological, topographical, mechanical and electrochemical properties of the nanocomposite coating. Vickers microhardness tester and nanoindentation technique were utilized to elucidate the role of BCNPs in modifying the mechanical response of nanocomposite coatings. Furthermore, corrosion resistance of the nanocomposite coatings was investigated through d.c potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Comparison of the properties of the developed coatings revealed the remarkable improvement in the properties of Ni-P-B4C nanocomposite coatings when compared to the bare mild steel substrate and the Ni-P coatings. The enhanced corrosion resistance and superior mechanical properties of Ni-P-B4C nanocomposite coatings make them attractive for many industries. Based upon the experimental findings, a possible mechanism for the synthesis and improved corrosion resistance of Ni-P-B4C nanocomposite coatings was also proposed. (c) 2022 The Author(s). Published by Elsevier B.V.
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