Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1651033 | Materials Letters | 2008 | 4 Pages |
Abstract
Ultrasonic vibration was introduced into the solidification of AZ91 alloy. Various microstructures were produced in this alloy using ultrasonic vibrations at different temperatures of the melt. The coarse dendrite microstructures were obtained with ultrasonic vibrations at temperatures below the liquidus temperature. The fine uniform grains were achieved under ultrasonic vibrations during the nucleation stage, which was mainly attributed to the cavitation and the acoustic flow induced by the ultrasonic vibration.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Xinbao Liu, Yoshiaki Osawa, Susumu Takamori, Toshiji Mukai,