Effect of micro-particles on cavitation erosion behavior of 2Cr3WMoV steel
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 29 March 2024
Issue publication date: 26 April 2024
Abstract
Purpose
This paper aims to study the influence of microparticles on the surface cavitation behavior of 2Cr3WMoV steel; microparticle suspensions of different concentration, particle size, material and shape were prepared based on ultrasonic vibration cavitation experimental device.
Design/methodology/approach
2Cr3WMoV steel was taken as the research object for ultrasonic cavitation experiment. The morphology, quantity and distribution of cavitation pits were observed and analyzed by metallographic microscope and scanning electron microscope.
Findings
The study findings showed that the surface cavitation process produced pinhole cavitation pits on the surface of 2Cr3WMoV steel. High temperature in the process led to oxidation and carbon precipitation on the material surface, resulting in the “rainbow ring” cavitation morphology. Both the concentration and size of microparticles affected the number of pits on the material surface. When the concentration of microparticles was 1 g/L, the number of pits reached the maximum, and when the size of microparticles was 20 µm, the number of pits reached the minimum. The microparticles of Fe3O4, Al2O3, SiC and SiO2 all increased the number of pits on the surface of 2Cr3WMoV steel. In addition, the distribution of pits of spherical microparticles was more concentrated than that of irregularly shaped microparticles in turbidity.
Originality/value
Most of the current studies have not systematically focused on the effect of each factor of microparticles on the cavitation behavior when they act separately, and the results of the studies are more scattered and varied. At the same time, it has not been found to carry out the study of microparticle cavitation with 2Cr3WMoV steel as the research material, and there is a lack of relevant cavitation morphology and experimental data.
Keywords
Acknowledgements
The research work was supported by the Civil Aviation University of China College Students Innovation and Entrepreneurship Training Program (202210059018) and the Ministry of Education parental affection plan project (HZKY20220606- 202201390).
Citation
Zhao, H., Ding, Q., Li, Y., Cui, Y. and Luo, J. (2024), "Effect of micro-particles on cavitation erosion behavior of 2Cr3WMoV steel", Anti-Corrosion Methods and Materials, Vol. 71 No. 3, pp. 264-274. https://doi.org/10.1108/ACMM-06-2023-2839
Publisher
:Emerald Publishing Limited
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