Liu Xuan, Guo Zhichao, Xue Jilai, Zhang Cheng
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China.
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China.
Ultrason Sonochem. 2019 Apr;52:33-40. doi: 10.1016/j.ultsonch.2018.09.009. Epub 2018 Sep 5.
In this work, ultrasound has been employed to help prepare Al-Sc alloys using the molten salt electrolysis. The effects of synergetic ultrasound on the Sc content and primary AlSc particles of Al-Sc alloys are specifically investigated. Ultrasound can strongly promote the Sc content of the electrolytic Al-Sc alloy and transform the large AlSc phase clusters into fine cubic particles. Meanwhile, it also homogenizes the distribution of AlSc phase. The Sc content increases by 74.4% up to 1.43 wt% when applying ultrasound during both electrolysis and solidification process. It also transforms the molten salts/liquid Al interface by enhancing the wettability. The huge primary AlSc phase clusters transform into fine cubic particles by ultrasound. The average particle size reduces from 77 ± 36 μm down to 21 ± 8 μm. The concerned mechanism have been discussed in detail.
在这项工作中，超声已被用于辅助通过熔盐电解制备铝钪合金。具体研究了协同超声对铝钪合金中钪含量和初生AlSc颗粒的影响。超声能强烈促进电解铝钪合金中的钪含量，并将大的AlSc相簇转变为细小的立方颗粒。同时，它还使AlSc相的分布均匀化。在电解和凝固过程中都施加超声时，钪含量增加74.4%，达到1.43 wt%。它还通过提高润湿性改变熔盐/液态铝界面。巨大的初生AlSc相簇通过超声转变为细小的立方颗粒。平均粒径从77±36μm降至21±8μm。详细讨论了相关机理。
