摘要
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 1 050 ℃, 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.
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 1 050 ℃, 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.
出处
《中国有色金属学会会刊：英文版》
CSCD
2003年第2期329-334,共6页
Transactions of Nonferrous Metals Society of China
基金
ProjectsupportedbytheSpecialFoundationoftheStateEducationMinistryofChinaforOverseasReturnees
关键词
过共晶铝硅合金
组织遗传
电阻率
熔炼
显微结构
Al Si alloys
melt
original structure
electrical resistivity
structural heredity
