Refinement of eutectic silicon phase of aluminum A356 alloy using high-intensity ultrasonic vibration

Refinement of eutectic silicon phase of aluminum A356 alloy using high-intensity ultrasonic vibration

The eutectic silicon in A356 alloy can be refined and modified using either chemical, quench, or superheating modification. We observed, for the first time, that the eutectic silicon can also be significantly refined using high-intensity ultrasonic vibration. Rosette-like eutectic silicon is formed...

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Veröffentlicht in:Scripta materialia 2006-03, Vol.54 (5), p.893-896
Hauptverfasser: Jian, X., Meek, T.T., Han, Q.
Format: Artikel
Sprache:eng
Schlagworte:
ALLOYS
ALUMINIUM
Aluminum alloys
Applied sciences
Eutectic solidification
EUTECTICS
Exact sciences and technology
Grain refining
MATERIALS SCIENCE
Metals. Metallurgy
MICROSTRUCTURE
REFINING
SILICON
SOLIDIFICATION
SUPERHEATING
Ultrasonic vibration
ULTRASONIC WAVES
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Beschreibung
Zusammenfassung:The eutectic silicon in A356 alloy can be refined and modified using either chemical, quench, or superheating modification. We observed, for the first time, that the eutectic silicon can also be significantly refined using high-intensity ultrasonic vibration. Rosette-like eutectic silicon is formed during solidification of specimen treated with high-intensity ultrasonic vibration.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2005.11.004