Microstructure refinement of Sn一Sb Peritectic alloy by power ultrasonic

Abstract

Sn-Sb peritectic alloy was treated with 400 W, 600 W and 800 W ultrasonic, respectively, to study the effect of power ultrasonic on solidification microstructure. Results show that power ultrasonic can refine a phase and p phase of the al-loy, as well as eliminate gravitational segregation. Moreover, 600 W ultrasonic demonstrated the best refining effect, not only homogenous and fine solidification microstructure can be obtained, the cubical p phase crystals can also be spheroidized.

Keywords

• ultrasonic
• Sn-Sb peritectic alloy
• solidification microstructure