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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Effect of High Magnetic Field on Phase...

Effect of High Magnetic Field on Phase Transformation of 7055 Alloy during Homogenization

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Abstract:

The microstructural evolutions of 7055 aluminum alloy after single and two-step homogenization with or without applying 12T high magnetic field were investigated. The as-cast microstructures of 7055 alloy consist of α+AlZnMgCu eutectics, Al7Cu2Fe phase and AlTiCuFe phase. During homogenization, coarse α+AlZnMgCu eutectics located at interdendritic region become smaller, discontinuous and spheroidized, some of them transform into Al2CuMg (S) having a higher melting point. High magnetic field significantly accelerates the dissolution of α+AlZnMgCu eutectics and S phase. The least amount of α+AlZnMgCu eutectics and S phase is obtained when the alloy homogenized at 4650C/10h+4850C/8h under 12T high magnetic field.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

4472-4476

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.4472

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Online since:

February 2011

Authors:

Li Zi He, Xie Hua Li, Jian Zhong Cui

Keywords:

7055 Alloy, High Magnetic Field, Homogenization, Phase Transformation

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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