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1. Influence of the amount of KBF4 on the morphology of Mg2Si in Mg–5Si alloys

Author

Wang, Hui-Yuan, Wang, Wei, Zha, Min, Zheng, Na, Gu, Zhen-Hua, Li, Dong, and Jiang, Qi-Chuan

Subjects
*METALLIC composites, *ALLOYS, *MICROSTRUCTURE, *STEREOLOGY
Abstract

Abstract: The modification of Mg2Si in Mg–5Si alloys with KBF4 was investigated in detail. With the increase of KBF4 content, the alloys exhibited sub-modified and fully modified microstructures, but no over-modified microstructure was found. In the fully modified alloys, most of the primary Mg2Si particles exhibited the morphology of octahedrons. It is believed that B which came from the decomposition of KBF4 effectively confined the growth of primary Mg2Si to the octahedron morphology. [Copyright &y& Elsevier]

Published
2008
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