Effect of barium on the refinement of primary aluminum and eutectics in a hypoeutectic Al-Si alloy
来源期刊：Rare Metals2003年第3期
论文作者：LI Wei, FAN Hongyuan, ZHANG Xianju, and SHEN BaoluoSchool of Manufacturing Science and Engineering, Sichuan University, Chengdu , China
文章页码：192 - 196
摘 要：<正> The effect of barium on the refinement of primary aluminum and on the modification of eutectics in a hypoeutec-tic aluminum-silicon alloy was investigated. The results indicate that barium not only modifies the eutectic silicon but also refines the primary aluminum and there is a relationship between the retained barium and the second spacing of primary aluminum. Experiments of barium-treated commercial Al-Si hypoeutectic alloy show that barium is a better modifier than sodium when there is a longer holding time.
LI Wei, FAN Hongyuan, ZHANG Xianju, and SHEN BaoluoSchool of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, China
摘 要：<正> The effect of barium on the refinement of primary aluminum and on the modification of eutectics in a hypoeutec-tic aluminum-silicon alloy was investigated. The results indicate that barium not only modifies the eutectic silicon but also refines the primary aluminum and there is a relationship between the retained barium and the second spacing of primary aluminum. Experiments of barium-treated commercial Al-Si hypoeutectic alloy show that barium is a better modifier than sodium when there is a longer holding time.
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