Effect of ultrasonic vibration on unmixed zone formation

Effect of ultrasonic vibration on unmixed zone formation

Ultrasonic vibration was applied to molten super-austenitic stainless weld metal during the shielded metal arc–welding process. It was observed that the unmixed zone in the weld metal was completely eliminated by high-intensity ultrasonic vibrations. This is mainly due to a complete mixing of the mo...

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Veröffentlicht in:Scripta materialia 2006-12, Vol.55 (11), p.975-978
Hauptverfasser: Cui, Y., Xu, C.L., Han, Q.
Format: Artikel
Sprache:eng
Schlagworte:
Acoustics
Applied sciences
Arc welding
Austenitic steels
Base metal
CAVITATION
CORROSION
CORROSION RESISTANCE
Exact sciences and technology
Filler metal
FILLER METALS
FREEZING
Joining, thermal cutting: metallurgical aspects
MATERIALS SCIENCE
Metals. Metallurgy
Microstructure
SHIELDED METAL-ARC WELDING
Ultrasonic vibration
ULTRASONIC WAVES
Weld metal
Welding
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Zusammenfassung:Ultrasonic vibration was applied to molten super-austenitic stainless weld metal during the shielded metal arc–welding process. It was observed that the unmixed zone in the weld metal was completely eliminated by high-intensity ultrasonic vibrations. This is mainly due to a complete mixing of the molten filler metal and base metal, at the freezing front, caused by acoustically induced cavitation and streaming.
ISSN:1359-6462
0956-716X
1872-8456
DOI:10.1016/j.scriptamat.2006.08.035