Vol.17, No.2, 2021, pp.501-509, doi:10.32604/fdmp.2021.015161
OPEN ACCESS
ARTICLE
Effect of Al2O3 Nanoparticle on Cavitation Strengthening of Magnesium Alloys
  • Lei Liu*, Chuanhui Huang, Xinghua Lu, Ping Yu, Longhai Li, Huafeng Guo
Xuzhou Institute of Technology, Xuzhou, 221000, China
* Corresponding Author: Lei Liu. Email:
Received 26 November 2020; Accepted 01 March 2021; Issue published 02 April 2021
Abstract
In order to study the effect of Al2O3 nanoparticles in the cavitation-based strengthening process of magnesium alloys, the impact of a micro-jet generated by bubble collapse has been considered. The strengthening mechanism is based on the transfer of the energy of cavitation due to bubble collapse to Al2O3 particles, which then undergo collision with the surface of the sample. The hardness, surface morphology, element content and chemical state of the strengthened samples have been analyzed by microhardness tests, SEM (scanning electron microscopy) and XPS (X-ray photoelectron spectroscopy) techniques. The results show that: after 5 min of strengthening, nanoparticles can be found on the surface of the sample through SEM. Combined with XPS tests, the content of Al2O3 in the sample can be significantly increased, indicating that Al2O3 particles penetrate into the surface and increase its hardness by 29.1 HV.
Keywords
Cavitation; nanoparticles; strengthening; SEM; XPS
Cite This Article
Liu, L., Huang, C., Lu, X., Yu, P., Li, L. et al. (2021). Effect of Al2O3 Nanoparticle on Cavitation Strengthening of Magnesium Alloys. FDMP-Fluid Dynamics & Materials Processing, 17(2), 501–509.
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