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Volume 9
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10.3390/met9111210
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Article

Effects of High-Intensity Ultrasound on Microstructure and Mechanical Property of In situ TiB2/2A14 Composites

by
Kai Huang
1,2,
Ripeng Jiang
1,2,*,
Xiaoqian Li
1,2,3,
Lihua Zhang
2,3,
Zhenghua Li
2,3 and
Ruiqing Li
1,2,3
1
Research Institute of Light Alloy, Central South University, Changsha 410083, China
2
State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, China
3
College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
*
Author to whom correspondence should be addressed.
Metals 2019, 9(11), 1210; https://doi.org/10.3390/met9111210
Submission received: 19 October 2019 / Revised: 5 November 2019 / Accepted: 8 November 2019 / Published: 11 November 2019
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Abstract

In situ TiB2/2A14 composites with a 3% volume fraction were prepared by mixing salt reaction and high energy ultrasound. The effects of high-intensity ultrasonic on the microstructure and mechanical properties of TiB2/2A14 composites were systematically investigated. The microstructures of the composites were analyzed using scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD). The phase composition was examined by X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS). The results showed that after introducing ultrasonic vibration into the melt, due to the cavitation and acoustic streaming effect, the particle agglomerations were significantly reduced and particles of different sizes were evenly dispersed in the matrix. With ultrasonic vibration treatment of 120 s, the agglomerations were basically eliminated, and the particles were uniformly distributed to the most. The yield strength, tensile strength and elongation of the composites were increased by 53%, 21% and 30%, respectively, compared with that without ultrasonic vibration treatment (UVT).
Keywords: TiB2 particles; aluminum matrix composite; ultrasonic; in situ reaction TiB2 particles; aluminum matrix composite; ultrasonic; in situ reaction

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MDPI and ACS Style

Huang, K.; Jiang, R.; Li, X.; Zhang, L.; Li, Z.; Li, R. Effects of High-Intensity Ultrasound on Microstructure and Mechanical Property of In situ TiB2/2A14 Composites. Metals 2019, 9, 1210. https://doi.org/10.3390/met9111210

AMA Style

Huang K, Jiang R, Li X, Zhang L, Li Z, Li R. Effects of High-Intensity Ultrasound on Microstructure and Mechanical Property of In situ TiB2/2A14 Composites. Metals. 2019; 9(11):1210. https://doi.org/10.3390/met9111210

Chicago/Turabian Style

Huang, Kai, Ripeng Jiang, Xiaoqian Li, Lihua Zhang, Zhenghua Li, and Ruiqing Li. 2019. "Effects of High-Intensity Ultrasound on Microstructure and Mechanical Property of In situ TiB2/2A14 Composites" Metals 9, no. 11: 1210. https://doi.org/10.3390/met9111210

APA Style

Huang, K., Jiang, R., Li, X., Zhang, L., Li, Z., & Li, R. (2019). Effects of High-Intensity Ultrasound on Microstructure and Mechanical Property of In situ TiB2/2A14 Composites. Metals, 9(11), 1210. https://doi.org/10.3390/met9111210

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