Microstructure Refinement of Sn-Sb Peritectic Alloy under High-Intensity Ultrasound Treatment

• Published in: Journal of Shanghai University Vol. 9; no. 1; pp. 74 - 77
• Main Author: 戚飞鹏 张海波 高守雷 翟启杰
• Format: Journal Article
• Language: English
• Published: 01.02.2005
• Subjects: Sn-Sb包晶合金; 凝固结构; 功率超声细化; 锡锑合金
• ISSN: 1007-6417; 1863-236X
• DOI: 10.1007/s11741-005-0108-9

In this paper the solidification behavior of Sn-Sb peritectic alloy and the mechanism of grain refinement in solidification process under high-intensity ultrasonic field are investigated. Three different powers of high-intensity ultrasound are introduced into molten Sn-Sb peritectic alloy to study the refining effectiveness. The results show that the application of high-intensity ultrasound during solidification process of Sn-Sb peritectic alloy can refine a phase and β phase and eliminate gravity segregation of the alloy. As acoustic intensity is increased from 400 W to 800 W, not only the homogenous fine structure can be obtained, but also the cubic β phase crystals tend to be spherical. Microstructure of the sample treated by 600 W high-intensity ultrasound demonstrates the best refining effect.