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REFINING EFFECT OF BORON ON THE EUTECTIC SILICON IN HYPOEUTECTIC AlSi ALLOYS

L .Wang , X. F. Bian and S.J. Yuan MaterialScience and Engineering , Shandong University of Technology , Jinan 250061 , China

金属学报(英文版)

The effect of boron on the eutecticsilicon in hypoeutectic Al Si alloys has been studied withXRDand SEM. Thefindingindicatesthatboron hasastrong refining effecton eutecticsili con . AlB2 formed by boron additionto Al Si meltsactasthe nucleusofeutecticsilicon which leadstotherefinementofeutecticsilicon.

关键词: hypoeutectic Al Sialloys , null , null