Ultrasonic Effect on Refinement of Mg2Si and Mechanical Properties of In Situ Al-Mg-Si Composites

Abstract:

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Coarse primary Mg2Si was usually found in Al-Mg-Si alloys. In this experiment, to refine the coarse primary Mg2Si size, ultrasound was used as a new process. Ultrasound was injected to the molten Al-Mg-Si melts directly and its effect was significant. Average size of primary Mg2Si was reduced from 70γŽ› to 15γŽ›, morphology was also changed to polygonal from irregular shape. Moreover tensile strength was improved by 30%, from 112 to 148 after ultrasonic injection.

Info:

Periodical:

Advanced Materials Research (Volumes 79-82)

Edited by:

Yansheng Yin and Xin Wang

Pages:

549-552

DOI:

10.4028/www.scientific.net/AMR.79-82.549

Citation:

D. G. Ko et al., "Ultrasonic Effect on Refinement of Mg2Si and Mechanical Properties of In Situ Al-Mg-Si Composites", Advanced Materials Research, Vols. 79-82, pp. 549-552, 2009

Online since:

August 2009

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Price:

$35.00

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