Research & Development in Material Science

Role of Diamond Nanoparticles in Ni Based Protective Coatings

Submission: November 20, 2017; Published: December 15, 2017

DOI: 10.31031/RDMS.2017.02.000542

ISSN: 2576-8840
Volume2 Issue4


Protective coatings are important for mitigation of the corrosion and erosive wear of equipment components and infrastructure in oil and gas industry. Ni-based metal-matrix nanocomposite (MMnC) coatings incorporated with diamond nanoparticles offer an interesting alternative to hard chromium and conventional Ni coatings. It is expected that components manufactured from inexpensive base materials coated with MMnCs should have longer service life, which translates into lower operating costs. In the present work, two different Ni-based MMnCs filled with nanodiamond particles were developed through Ni-P electroless and Ni-B electroplating deposition. The role of co-deposited diamond nanoparticles in these Ni-based MMnCs has been assessed by following the relationship between hardness and corrosion potential and microstructure and particle size of the coatings. The results presented in this paper demonstrate that Ni-based MMnC coatings outperform conventional electroless Ni-P and electroplated Ni-B coatings and validate their ability to provide simultaneous corrosion and erosion protection for oil and gas tools and components.

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