Electrical resistivity and structural heredity of hypereutectic Al-Si alloy melt

来源期刊：中国有色金属学报(英文版)2003年第2期

论文作者：李培杰 熊玉华 张燕飞 曾大本

文章页码：329 - 334

Key words：Al-Si alloys; melt; original structure; electrical resistivity; structural heredity

Abstract: The variation rule of the sensitive physical properties of Al-16%Si alloy melt was studied. The results show that within a certain temperature range, the electrical resistivity of Al-16%Si alloy melt changes abruptly in the forms of inflection points or platforms, which is ascribed to the changes in the internal microstructure of the melt. Based on this rule, the variation characteristics of microstructure can be revealed. When remelting and overheating Al-16%Si alloy to 1050℃, the hereditary effects of different original structure on solidification structure after remelting can be eliminated, which can provide scientific foundation for properly controlling the hereditary factors transmitting the structural information of melt.