Al-7Si alloy directional solidification with the application of a pulsed magnetic field

摘要：

　　An experiment on the directional solidification of Al-7Si alloys under the influence of a pulsed magnetic field(PMF)is performed.Maximal peak value of PMF intensity up to 0.226 T between two iron cores was generated when a capacitor bank of 120 μF capacitance with initial voltage of 1000 V was triggered to a pair of solenoids.The PMF decreases the temperature gradient ahead of the liquidus front and increases the width of the mushy zone.In this paper,using Darcys permeability law and Lehmanns model,the order of magnitude of the interdendritic liquid flow velocities with the application of PMF is evaluated.

关键词： solidification Al-Si alloy microstructure pulsed magnetic field

作者: ZHAO Zhi-long REN Hai-guo LIU Lin

作者单位: School of Mechatronics.Northwestern Polytechnic University,Xian 710072,Shaanxi,China State Key Laboratory of Solidification Processing,Northwestern Polytechnic University,Xian 710072,S

会议类型: 国际会议

会议名称: The 7th International Conference on Electromagnetic Processing of Materials(第七届冶金与材料电磁过程国际大会)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2012-10-22（万方平台首次上网日期，不代表论文的发表时间）