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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:

Fluid Dynamics & Materials Processing 2021, 17(2), 501-509.


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.


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.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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