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Preparation of Al–La master alloy by ultrasonic method and modification on Al alloy

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Abstract

In this study, two kinds of Al–La master alloys were prepared by ultrasonic method and ordinary mix-melting method, and both of the alloys were added into the Al alloy. Then, the microstructure of Al–La master alloy and the modification effect on the Al alloy were investigated using optical microscope (OM), X-ray diffraction (XRD), scanning electron microscope (SEM), and energy disperse spectroscopy (EDS). The results show that because of ultrasonic cavitation and streaming, the grain size of Al–La master alloy prepared by the ultrasonic method is refined, which distributes evenly. And, there is no gas hole, inclusion, or segregation in the Al–La master alloy with α-Al, La, and La3Al11. Furthermore, Al–La master alloys show a nice modification for Al alloy, which is much better than that prepared by ordinary mix-melting method.

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Acknowledgments

This research was financially supported by the National Natural Science Foundation of China (No. 51165032), the Innovative Group of Science and Technology of College of Jiangxi Province (No. 00008713), and the Jiangxi Province Education Commission Foundation (No. GJJ13203).

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Authors and Affiliations

  1. Department of Materials Processing Engineering, School of Mechanical and Electrical Engineering, Nanchang University, Nanchang, 330031, China

    Hong Yan, Xian-Chen Song & Xin Huang

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  1. Hong Yan
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  2. Xian-Chen Song
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  3. Xin Huang
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Correspondence to Hong Yan.

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Yan, H., Song, XC. & Huang, X. Preparation of Al–La master alloy by ultrasonic method and modification on Al alloy. Rare Met. 34, 457–462 (2015). https://doi.org/10.1007/s12598-013-0084-3

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  • DOI: https://doi.org/10.1007/s12598-013-0084-3

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