Influence of Ce and Mn addition on α-Fe morphology in recycled Al-Si alloy ingots

The influence of Ce or Ce and Mn combined additions on the morphology of α-Fe phases in recycled Al-Si alloys was experimentally investigated by microstructure observation and room temperature tensile testing. It is found that Ce modifies the morphology of α-Fe phase from the large Chinese script-li...

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Bibliographic Details
Published in:International journal of minerals, metallurgy and materials metallurgy and materials, 2013-09, Vol.20 (9), p.890-895
Main Authors: Fan, Chao, Long, Si-yuan, Yang, Huai-de, Wang, Xiang-jie, Zhang, Jun-cheng
Format: Article
Language:English
Subjects:
Alpha iron
Aluminum base alloys
Ceramics
Cerium
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Corrosion and Coatings
Glass
Manganese
Materials Science
Metallic Materials
Morphology
Natural Materials
Nucleation
Room temperature
Silicon
Solidification
Surfaces and Interfaces
Tensile tests
Thin Films
Tribology
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Summary:The influence of Ce or Ce and Mn combined additions on the morphology of α-Fe phases in recycled Al-Si alloys was experimentally investigated by microstructure observation and room temperature tensile testing. It is found that Ce modifies the morphology of α-Fe phase from the large Chinese script-like into the individual and fine nodular shape. A combined addition of Ce and Mn results in the promotion of primary α-Fe formation, and their size increases considerably with the increase in Ce content. The mechanism of the above morphological changes was discussed in accordance with the nucleation and growth of α-Fe phase during solidification.
ISSN:1674-4799
1869-103X
DOI:10.1007/s12613-013-0811-7