Floating Grains in the HDC Casting 7075 Aluminum Alloy Ingot

Abstract:

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7075 aluminum alloy ingot with the diameters of 100 mm was produced by Horizontal Direct-Chill (HDC). The temperature in the melt was measured and the ingots were examined in detail with the aim to reveal the floating grains in the HDC ingot. Experimental results show that very large floating grains with coarse dendrite arm spacing (DAS) mainly concentrate in the half-moon area near bottom surface of the HDC casting ingot, under the function of gravity. The floating grains in the HDC casting process is much bigger than that founded in Vertical Direct-Chill (VDC) casting process.

Info:

Periodical:

Edited by:

Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen

Pages:

1531-1534

DOI:

10.4028/www.scientific.net/AMM.117-119.1531

Citation:

Q. F. Zhu et al., "Floating Grains in the HDC Casting 7075 Aluminum Alloy Ingot", Applied Mechanics and Materials, Vols. 117-119, pp. 1531-1534, 2012

Online since:

October 2011

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$35.00

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