接金川

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教授

博士生导师

硕士生导师

性别:男

毕业院校:哈尔滨工业大学

学位:博士

所在单位:材料科学与工程学院

学科:材料加工工程

办公地点:铸造中心101

联系方式:0411-84706220

电子邮箱:jiejc@dlut.edu.cn

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Microstructure and properties of Al-Si alloys under intermediate frequency electromagnetic field

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论文类型:会议论文

发表时间:2018-01-01

收录刊物:CPCI-S

卷号:424

期号:1

关键字:Al-Si alloys; Intermediate frequency electromagnetic field; Solidification Microstructure; mechanical properties

摘要:The intermediate frequency electromagnetic (IFEM) field was applied to treat Al-1% Si (high-purity) and Al-8% Si alloys during direct chill (DC) casting process. The ingot was studied by means of metallographic examination and mechanical tests. The results showed that compared to the conventional casting, both Al-1% Si and Al-8% Si alloys processed under IFEM field exhibited superior refinement as well as an enhancement in the mechanical properties, especially the elongation. Si element segregation of high purity Al-1% Si alloy had effectively improved under IFEM field. Numerical simulation was used to better understand the role of IFEM field, that showed the inducing forced convection and the subsequent achievement of a uniform temperature field of IFEM field during the solidification could be accounted for the experimental observations.