Journal
MATERIALS & DESIGN
Volume 64, Issue -, Pages 423-426Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2014.07.068
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Funding
- Industry, Education, and Research Prospective Project of Jiangsu Province [BY2012191]
- Jiangsu Key Laboratory of Advanced Metallic Materials [AMM201202]
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In this paper, with the combinative addition of La and B elements, the grain refinement of Al-Si alloys with different contents of Si was achieved. Compared to individual addition of B element, the combinative addition of La and B elements can effectively refine the grains of Al-Si alloys. The addition of La element suppresses the mutual poisoning between Sr and B elements, benefiting the formation of a fully modified eutectic silicon structure in the Al-Si alloys. This work also indicates that the tensile properties, especially the elongation, of Al-Si alloys are enhanced with the addition of La element. (C) 2014 Elsevier Ltd. All rights reserved.
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