Effect of Electromagnetic Frequency on Microstructures of Continuous Casting Aluminum Alloys  

作　　者：BeijiangZHANG GuiminLU 等 

机构地区：[1]KeylaboratoryofElectromagneticProcessingofMaterials,MinistryofEducation,SchoolofMaterialsandMetallurgy,NortheasternUniversity,Shenyang110004,China [2]KeylaboratoryofElectromagneticProcessingofMaterials,M

出　　处：《Journal of Materials Science & Technology》2002年第5期401-403,共3页材料科学技术（英文版）

基　　金：This research was supported by Major State Basic Research Projects of China, Grant No.:G1999064905; and the National Natural Science Foundation of China, No.59974009.

摘　　要：The relationship between electromagnetic frequency and microstructures of continuous casting aluminum alloys was studied. 7075 aluminum alloy ingot of 100 mm in diameter was produced by electromagnetic continuous casting process, the microstructures of as-cast ingot was examined by scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS). The results showed that electromagnetic frequency greatly influenced segregation and microstructures of as-cast ingot, and product quality can be guaranteed by the application of a proper frequency. Electromagnetic frequency plays a significant role in solute redistribution; low frequency is more efficient for promoting solution of alloying elements.The relationship between electromagnetic frequency and microstructures of continuous casting aluminum alloys was studied. 7075 aluminum alloy ingot of 100 mm in diameter was produced by electromagnetic continuous casting process, the microstructures of as-cast ingot was examined by scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS). The results showed that electromagnetic frequency greatly influenced segregation and microstructures of as-cast ingot, and product quality can be guaranteed by the application of a proper frequency. Electromagnetic frequency plays a significant role in solute redistribution; low frequency is more efficient for promoting solution of alloying elements.

关 键 词：Continuous casting Aluminum alloy Microstructure. Electromagnetic casting 

分 类 号：TG135[一般工业技术—材料科学与工程]