Effect of Ultrasonic Melt Treatment on Degassing and Structure of Aluminium Alloys

Noe Alba-Baena; Thomas Pabel; Natalia Villa-Sierra; Dmitry G. Eskin

doi:10.4028/www.scientific.net/MSF.765.271

Paper Titles

Catalytic Effect of Nanoparticles on Primary and Secondary Phase Nucleation
p.250

Practical Considerations on the Application of Ultrasonic Treatment to Mg-Al Shape Castings
p.255

A Study of the Behaviour of Double Oxide Films in Al Alloy Melts
p.260

Assessment of Quality when Delivering Molten Aluminium Alloys Instead of Ingots
p.266

Effect of Ultrasonic Melt Treatment on Degassing and Structure of Aluminium Alloys
p.271

Determination of the Magnitude of Interfacial Air-Gap and Heat Transfer during Ingot Casting into Permanent Metal Moulds by Numerical and Experimental Techniques
p.276

A Finite-Volume Model for Numerical Solidification of Mg Alloys
p.281

Study of the Solidification of AS Alloys Combining In Situ Synchrotron Diffraction and Differential Scanning Calorimetry
p.286

Solidification Mechanisms in Melt Conditioned Direct Chill (MC-DC) Cast AZ31 Billets
p.291

HomeMaterials Science ForumMaterials Science Forum Vol. 765Effect of Ultrasonic Melt Treatment on Degassing...

Effect of Ultrasonic Melt Treatment on Degassing and Structure of Aluminium Alloys

Abstract:

Ultrasonic processing is known to be an efficient means of aluminium melt degassing and structure modification with additional benefits of being economical and environment friendly. This paper reports on the kinetics of ultrasonic degassing effect of foundry alloys. Direct measurements of hydrogen concentration in the melt by Foseco Alspek-H probe are used along with the reduced-pressure test. The effects of ultrasonic processing on structure, i.e. grain size and porosity, are studied using metallography and 3D X-ray tomography. This work is performed within the Ultragassing project funded by the European Union’s 7^th Framework Program.

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Periodical:

Materials Science Forum (Volume 765)

Pages:

271-275

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.765.271

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Online since:

July 2013

Authors:

Noe Alba-Baena, Thomas Pabel, Natalia Villa-Sierra, Dmitry G. Eskin

Keywords:

Degassing, Melt Treatment, Porosity, Ultrasound (US)

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