The Effect of the Additional Processing during the Crystallization of a Melt of the AD0 Aluminum Alloy on the Size of Grains

Abstract:

During the process of the aluminum ingot manufacturing obtaining of a fine-grained structure has a huge significance for effectiveness of the further rolling process. The reduction of the grain size leads to an increased plasticity and higher grades of deformability. Today the multiple methods of improving the casting process are being developed varying from mechanical to physical or chemical methods, and their choice depends on different factors. However, the effect on the size of grains of the multi-factor impact was not described in literature. This paper investigates methods of casting including piston pressing with simultaneous exposure to the weak pulsed currents from electromagnetic field during crystallization of melted metal for the first time. The fine-grained uniform over the cross-section structure was achieved in the AD0 alloy ingots.

• Periodical: Materials Science Forum (Volume 870)
• Pages: 614-619
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.870.614
• Online since: September 2016
• Authors: E.G. Demyanenko*, I.P. Popov
• Keywords: Aluminum, Casting, Crystallization, Electromagnetic Field, Grain, Pulsed Current, Solidification, Structure

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DOI: 10.3103/s1067821215060085

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