Influence of Sb on Wear Resistance of In Situ Mg2Si/Al-Si Composites

Abstract:

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The microstructure and wear resistance of in-situ Mg2Si/Al-Si were studied in the different content of Sb. The result shows that when the content of Sb is 0.4%, the refining effect of primary Mg2Si granules in Mg2Si/Al-Si composite is best. The shape of Mg2Si turned into fine and even granules compared to the shape of Chinese character or treelike crystal before modification. At the same, the composite shows the best wear resistance and the loss of wear quality was reduced by 19%~37%. The improvement of the wear resistance by alloy elements is related to the modification of the Mg2Si granules and enhancement of the matrix. The main wear mechanism of in-situ Mg2Si/Al-Si composite is grain-abrasion.

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Edited by:

Zhongning Guo

Pages:

197-200

DOI:

10.4028/www.scientific.net/AMR.311-313.197

Citation:

N. C. Liu et al., "Influence of Sb on Wear Resistance of In Situ Mg2Si/Al-Si Composites", Advanced Materials Research, Vols. 311-313, pp. 197-200, 2011

Online since:

August 2011

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$35.00

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