EFFECT OF HOMOGENIZATION TREATMENT ON THE MICROSTRUCTURES OF LOW FREQUENCY ELECTROMAGNETIC CASTING 7050 ALUMINUM ALLOY

Acta Metall Sin

2007, Vol. 43

Issue (9): 956-960 DOI:

Research Articles

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EFFECT OF HOMOGENIZATION TREATMENT ON THE MICROSTRUCTURES OF LOW FREQUENCY ELECTROMAGNETIC CASTING 7050 ALUMINUM ALLOY

Zhihao Zhao;;;

东北大学材料电磁过程教育部重点实验室

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Zhihao Zhao. EFFECT OF HOMOGENIZATION TREATMENT ON THE MICROSTRUCTURES OF LOW FREQUENCY ELECTROMAGNETIC CASTING 7050 ALUMINUM ALLOY. Acta Metall Sin, 2007, 43(9): 956-960 .

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Abstract The 7050 aluminum alloy ingot with fine microstructure was cast by low frequency electromagnetic casting (LFEC) process. The homogenization treatment behaviors of LFEC ingot were investigated experimentally. The results show that the ingots cast with low frequency electromagnetic field has a better homogenization effect than conventional DC ingot. Under the same homogenization condition, the LFEC ingot has fewer low melting point phase between grains and more solute elements inside grains. After homogenized for 12 hours the LFEC ingots can reach the average percentage of the alloy elements, but the DC ingots haven’t reach it until for 48 hours.

Key words: 7050 aluminum alloy Low frequency electromagnetic casting homogenization treatment microstructures

Received: 10 January 2007

ZTFLH:

TF777，TG113.12

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2007/V43/I9/956

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