Effect of Magnetostatic Field on Microstructure of 7075 Aluminum Alloy Strip Manufactured by Twin-Roll Casting

Abstract:

In this paper, the effect of magnetostatic field on the microstructure and microsegregation of 7075 aluminum alloy strip by twin-roll casting is researched , and the result shows that when no electromagnetic field is applied during the process of roll-casting , the microstructure of 7075 strip is most composed of coarse columnar and dendritic crystal , the direction of grains is equal to roll-casting direction. When the magnetostatic field with 0.13T intensity is applied during the twin-roll casting, the microstructural of strip becomes uniform ,refined and equiaxed at the central zone of strip, and the dendritic crystal at the surficial is disordered and refined significantly.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 2427-2431
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.2427
• Online since: January 2013
• Authors: Xin Su, G M Xu, Y H Feng
• Keywords: 7075 Aluminum Alloy, Magnetostatic Field, Twin Roll Casting (TRC)

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