Influencing Factors of Preparation of Al-Mg-Sc Master Alloy
来源期刊：JOURNAL OF RARE EARTHS2007年增刊第1期
论文作者：Zhang Guifang Zhang Zonghua Zhang Jun
Key words：recrystallization; Al3Sc; Al-Sc alloy; electro magnetics; rare earths;
Abstract: Through the experiment, the reduced temperature, the containing scandium quantity of the fused salt, the agitated intensity and the restoring time that influence the rate of receives of scandium, and determined the technological conditions which uses the method of hot Al-Mg restoring anhydrous the chloride of scandium to prepare the Al-Mg-Sc master alloy. The best experimental technological conditions are that the master alloy can contains 8.0% of scandium while the restoring temperature is at 900℃, the restoring time is 20min and the agitated time is a half minute. When the method of the fused salt covered with bell, agitated and pressed the argon is used in the expansion tests, the agitated number is 4 times and the average receives rate of Sc is 90.0%.
Zhang Guifang1，Zhang Zonghua1，Zhang Jun1
(1.Faculty of Land Resource Engineering, Kunming University of Science and Technology, Yunnan 650093, China)
Abstract:Through the experiment, the reduced temperature, the containing scandium quantity of the fused salt, the agitated intensity and the restoring time that influence the rate of receives of scandium, and determined the technological conditions which uses the method of hot Al-Mg restoring anhydrous the chloride of scandium to prepare the Al-Mg-Sc master alloy. The best experimental technological conditions are that the master alloy can contains 8.0% of scandium while the restoring temperature is at 900℃, the restoring time is 20min and the agitated time is a half minute. When the method of the fused salt covered with bell, agitated and pressed the argon is used in the expansion tests, the agitated number is 4 times and the average receives rate of Sc is 90.0%.
Key words:recrystallization; Al3Sc; Al-Sc alloy; electro magnetics; rare earths;
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