@Article{fdmp.2021.015161,
AUTHOR = {Lei Liu, Chuanhui Huang, Xinghua Lu, Ping Yu, Longhai Li, Huafeng Guo},
TITLE = {Effect of Al<sub>2</sub>O<sub>3</sub> Nanoparticle on Cavitation Strengthening of Magnesium Alloys},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {17},
YEAR = {2021},
NUMBER = {2},
PAGES = {501--509},
URL = {http://www.techscience.com/fdmp/v17n2/42095},
ISSN = {1555-2578},
ABSTRACT = {In order to study the effect of Al<sub>2</sub>O<sub>3</sub> 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 Al<sub>2</sub>O<sub>3</sub> 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 Al<sub>2</sub>O<sub>3</sub> in the sample can be significantly increased, indicating that Al<sub>2</sub>O<sub>3</sub> particles penetrate into the surface and increase its hardness by 29.1 HV.},
DOI = {10.32604/fdmp.2021.015161}
}