Metall. Res. Technol.
Volume 119, Number 4, 2022
|Number of page(s)||8|
|Published online||06 July 2022|
Effect of Al particle size on the microstructure and wear properties of the co-deposited Ni-Al composite coatings
School of Mechanical Engineering and Automation, Shenyang Institute of Technology, Fushun 113122, PR China
2 Liaoning Key Laboratory of Information Physics Fusion and Intelligent Manufacturing for CNC Machine, Shenyang Institute of Technology, Fushun 113122, PR China
* e-mail: email@example.com
Accepted: 24 May 2022
Micrometer and nanometer Al particles were codeposited with nickel by electrodeposition from a nickel sulfate bath containing a similar content of Al particles. The microstructure, the friction and wear performance of the co-deposited Ni-Al composite coatings were comparatively evaluated. The results indicated that the co-deposition of smaller nanometer Al particles with Ni effectively reduces the size of Ni crystals and significantly increases the hardness of the composite coatings due to grain-refinement strengthening and dispersion-strengthening, resulting in a significant improvement of wear resistance of the Ni-Al nanocomposite coatings. The effect of Al particles size on the microstructure, friction and wear resistance is discussed in detail.
Key words: electrodeposited / composite coating / microhardness / wear
© EDP Sciences, 2022
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