Influence of Co2+ Ions on the Microstructure and Mechanical Properties of Ni–W/Diamond Nano-Composite Coatings
The Co were incorporated into the Ni–W/diamond nano-composite coatings by introducing CoSO4 in the aforesaid plating bath. The effects of the Co content in the electrodeposit on microstructure and mechanical properties were analyzed. The morphology and the composition
of the deposits were investigated by means of SEM and EDS, respectively. The Co content in the coatings increases progressively upon increasing the amount of CoSO4 in the plating bath. The addition of small amount of CoSO4 in the plating bath tends to enhance the hardness
and wear performance of the Ni–W/diamond nano-composite coatings. While the amount of CoSO4 beyond 0.2 g/L in the plating bath, the hardness and the wear resistance of the coatings decrease sharply.
Keywords: Composite Coatings; Electrodeposition; Hardness; Wear Resistance
Document Type: Research Article
Affiliations: 1: International Graduate Program of Nanoscience and Technology, Chulalongkorn University, Thailand 2: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, P. R. China 3: Surface Coatings Technology for Metals and Materials Research Unit, Metallurgy and Materials Science Research Institute, Chulalongkorn University, Bangkok, Thailand
Publication date: 01 July 2019
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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