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金属学报(英文版) 1999
REFINING EFFECT OF BORON ON THE EUTECTIC SILICON IN HYPOEUTECTIC AlSi ALLOYSKeywords: hypoeutectic Al,Sialloys,refinementofeutecticsilicon,nucleusofsilicon Abstract: 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.
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