Investigation of Si content on the grain refinement of Al-Si alloy under pulsed magnetic field

9th International Symposium on Electromagnetic Processing of Materials

材料科学;物理学

Jie, J.C.^1 ; Yue, S.P.^1 ; Zheng, Z.L.^1 ; Guo, Z.K.^1 ; Li, T.J.^1

Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province), School of Materials Science and Engineering, Dalian University of Technology, Dalian

116024, China^1

关键词: Al-Si alloy;    Commercial pure aluminum;    Constitutional supercooling;    Grain size;    Macrostructures;    Pulsed magnetic fields;    Si content;    Solidification structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/424/1/012053/pdf
DOI  :  10.1088/1757-899X/424/1/012053

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The influence of Si content and pulsed magnetic filed parameters on the solidification structure of the Al-Si binary alloy was investigated. Experimental results indicated that the addition of Si has a significant refinement on the macrostructure of the commercial pure aluminum. The grain size of the Al-Si binary alloy decreases first and then increases with increasing of Si content which could be caused by the constitutional-supercooling, but for the case where a PMF was applied, the grain size was further refined compared with as-cast state.