Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1608573 | Journal of Alloys and Compounds | 2015 | 7 Pages |
Abstract
Ni-Co-TiO2 nano-composite coatings were electroplated on mild steel by adding transparent TiO2 sol (0-50Â mL/L) into the Ni-Co plating solution. The microstructure, mechanical property and corrosion resistance of the composite coatings were systematically investigated. It was found that after adding an optimum sol concentration into the plating bath, a good dispersion of TiO2 nanoparticles can be achieved in the Ni-Co coating matrix, resulting in a significant improvement in coating mechanical properties. Ni-Co-12.5Â mL/L TiO2 coating possessed the best microhardness, wear resistance and corrosion resistance. However, adding excessive quantities of sol (more than 12.5Â mL/L) into the electrolyte caused nanoparticle agglomeration and created a porous structure, deteriorating the properties of coatings.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yuxin Wang, See Leng Tay, Shanghai Wei, Chao Xiong, Wei Gao, R.A. Shakoor, Ramazan Kahraman,