Version 1
: Received: 19 January 2024 / Approved: 19 January 2024 / Online: 22 January 2024 (09:41:04 CET)
How to cite:
Xie, W.; Li, S.; Li, X.; Wang, D.; Zhou, S.; Wang, Y.; Guo, C. Electrodeposition of Ni and Ni-Al2O3 Composite Coatings on Q345 Steels under Different Current Densities. Preprints2024, 2024011536. https://doi.org/10.20944/preprints202401.1536.v1
Xie, W.; Li, S.; Li, X.; Wang, D.; Zhou, S.; Wang, Y.; Guo, C. Electrodeposition of Ni and Ni-Al2O3 Composite Coatings on Q345 Steels under Different Current Densities. Preprints 2024, 2024011536. https://doi.org/10.20944/preprints202401.1536.v1
Xie, W.; Li, S.; Li, X.; Wang, D.; Zhou, S.; Wang, Y.; Guo, C. Electrodeposition of Ni and Ni-Al2O3 Composite Coatings on Q345 Steels under Different Current Densities. Preprints2024, 2024011536. https://doi.org/10.20944/preprints202401.1536.v1
APA Style
Xie, W., Li, S., Li, X., Wang, D., Zhou, S., Wang, Y., & Guo, C. (2024). Electrodeposition of Ni and Ni-Al2O3 Composite Coatings on Q345 Steels under Different Current Densities. Preprints. https://doi.org/10.20944/preprints202401.1536.v1
Chicago/Turabian Style
Xie, W., Yuchun Wang and Cuixia Guo. 2024 "Electrodeposition of Ni and Ni-Al2O3 Composite Coatings on Q345 Steels under Different Current Densities" Preprints. https://doi.org/10.20944/preprints202401.1536.v1
Abstract
The effect of current density of electrodeposition on the morphology, hardness, and corrosion resistance of the Ni coatings and Ni-Al2O3 coatings on Q345 steels were investigated. The surface of Ni coatings exhibited the cellular structure, while the surface of Ni-Al2O3 composite coatings showed the finer protrusions structure. The thickness of all coatings increased as the current density of electrodeposition increased from 1.5 A/dm2 to 3.0 A/dm2. After coating, the hardness and corrosion resistance of the Q345 steels were significantly enhanced. Furthermore, for the Ni coatings and Ni-Al2O3 coatings, the highest hardness and best anticorrosion property were obtained at 2.5 A/dm2 of electrodeposition current density. Compared with the Ni coatings, the co-deposition of Al2O3 nanoparticles improved the hardness of Ni-Al2O3 coating due to the second phase strengthen, but reduced the thickness and corrosion resistance due to more defects caused by the coelectrodeposition of the Al2O3 particles.
Keywords
Q345 steel; Electrodeposition; Al2O3 nanoparticles; Ni coatings
Subject
Chemistry and Materials Science, Surfaces, Coatings and Films
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
