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- Title
Preparation of Al-La master alloy by ultrasonic method and modification on Al alloy.
- Authors
Yan, Hong; Song, Xian-Chen; Huang, Xin
- 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 LaAl. Furthermore, Al-La master alloys show a nice modification for Al alloy, which is much better than that prepared by ordinary mix-melting method.
- Publication
Rare Metals, 2015, Vol 34, Issue 7, p457
- ISSN
1001-0521
- Publication type
Article
- DOI
10.1007/s12598-013-0084-3