Microstructural Study of Hypereutectic Al-15%Si Containing Ce

Abu Seman Anasyida; Zuhailawati Hussain; Ramdziah Md. Nasir; S.L. Joy-Yii

doi:10.4028/www.scientific.net/AMR.858.111

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 858Microstructural Study of Hypereutectic Al-15%Si...

Microstructural Study of Hypereutectic Al-15%Si Containing Ce

Abstract:

In this study the effect of cerium addition on the microstructure of hypereutectic Al-15Si alloy was investigated. Experiments have been conducted on Al15Si alloys with Ce content in the alloy varied from 0 to 2.51 wt.%. The alloys were produced by casting in a permanent mould. Optical microscopy, X-Ray Diffraction (XRD) and Vickers microhardness were used in this investigation. The results showed that the addition of 0 to 2.5 wt.% of cerium led to the formation of precipitation of rod-like Al₃Ce phase in the Al-matrix. The microhardness of the alloys increases with the increase in cerium content as a result of the Al₃Ce precipitation.

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Periodical:

Advanced Materials Research (Volume 858)

Pages:

111-115

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.858.111

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Online since:

November 2013

Authors:

Abu Seman Anasyida, Zuhailawati Hussain, Ramdziah Md. Nasir, S.L. Joy-Yii

Keywords:

Cerium, Hypereutectic, Intermetallic, Microhardness, Microstructure

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