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

Eraldo Pucina; Geoff de Looze; Dacian Tomus; Mark A. Easton; Andreas Schiffl; David H. St. John

doi:10.4028/www.scientific.net/MSF.765.255

Paper Titles

Effect of Travelling Magnetic Fields on the Dendritic Microstructure of AlSi and AlSiMn
p.235

Material Properties of Cast Aluminium Alloys Produced by Various Casting Processes
p.241

Study of Mechanical Properties of an LM24 Composite Alloy Reinforced with Cu-CNT Nanofillers, Processed Using Ultrasonic Cavitation
p.245

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

HomeMaterials Science ForumMaterials Science Forum Vol. 765Practical Considerations on the Application of...

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

Abstract:

This paper investigates the use of ultrasonic treatment on the grain refinement of Mg-Al alloys in castings similar to commercial gravity castings. It shows that it is a very effective form of grain refinement but it is limited spatially and by the advancing solidification front if partially-solidified product is washed into the die. It was found that the best way to obtain a homogeneous fine grain size through-out the casting was to combine a grain refining addition, SiC, with ultrasonic treatment during the initial stages of solidification.

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Periodical:

Materials Science Forum (Volume 765)

Pages:

255-259

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.765.255

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Online since:

July 2013

Authors:

Eraldo Pucina, Geoff de Looze, Dacian Tomus, Mark A. Easton, Andreas Schiffl, David H. St. John

Keywords:

Grain Refinement, Solidification, Ultrasonic Treatment

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