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HomeMaterials Science ForumMaterials Science Forum Vols. 828-829Direct-Chill Casting of AA7449 Aerospace Alloy...

Direct-Chill Casting of AA7449 Aerospace Alloy under Electromagnetic and Ultrasonic Combined Fields

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Abstract:

This work is based on investigation of the influence of electromagnetic fields and ultrasonic vibrations and their combination on the resulting microstructure of an AA7449 aerospace aluminium alloy. The results demonstrate the application of the compound electro-magnetic and ultrasonic fields under optimum conditions delivers not only a refined microstructure but also consistent distribution of chemical composition. It suggests an alternative method for producing high strength aerospace alloys which could not be refined through conventional addition of chemical grain refiners.

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Light Metals Technology 2015

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Periodical:

Materials Science Forum (Volumes 828-829)

Pages:

48-52

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.828-829.48

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Online since:

August 2015

Authors:

Reza Haghayeghi*, Plato Kapranos

Keywords:

Electromagnetic Field, Grain Refinement, Ultrasonic Vibration

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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