Research on Effect of La on Microstructure in Semi-Solid A356 Alloy

Abstract:

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Semi-solid A356 alloy slurry grain-refined by Al-La master alloy is prepared by low superheat pouring. The effects of La on the morphology and size of primary grain in semi-solid A356 alloy are researched. The results indicate that the semi-solid A356 alloy slurry with particle-like and rosette-like primary grains can be prepared by low superheat pouring. The size and morphology of the primary grain in semi-solid A356 alloy are markedly improved by La. The refining mechanism of La on the morphology and size of the primary grain in semi-solid A356 alloy is delved. The eutectic reaction of Al-La binary alloy provides the effective nuclei for formation of the primary grains in semi-solid A356 alloy.

Info:

Periodical:

Advanced Materials Research (Volumes 139-141)

Edited by:

Liangchi Zhang, Chunliang Zhang and Tielin Shi

Pages:

693-697

DOI:

10.4028/www.scientific.net/AMR.139-141.693

Citation:

X. M. Liu et al., "Research on Effect of La on Microstructure in Semi-Solid A356 Alloy", Advanced Materials Research, Vols. 139-141, pp. 693-697, 2010

Online since:

October 2010

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Price:

$35.00

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