As-cast structure of DC casting 7075 aluminum alloy obtained under dual-frequency electromagnetic field
来源期刊：International Journal of Minerals Metallurgy and Materials2014年第2期
论文作者：Zhi-hao Zhao Zhen Xu Gao-song Wang Qing-feng Zhu Jian-zhong Cui
文章页码：150 - 154
摘 要：We have experimentally determined the as-cast structures of semi-continuous casting 7075 aluminum alloy obtained in the presence of dual-frequency electromagnetic field.Results suggest that the use of dual-frequency electromagnetic field during the semi-continuous casting process of 7075 aluminum alloy ingots reduces the thickness of the surface segregation layer,increases the height of the melt meniscus,enhances the surface quality of the ingot,and changes the surface morphology of the melt pool.Moreover,low-frequency electromagnetic field was found to show the most obvious influence on improving the as-cast structure because of its high permeability in conductors.
Zhi-hao Zhao，Zhen Xu，Gao-song Wang，Qing-feng Zhu，Jian-zhong Cui
The Key Laboratory of the Ministry of Education of China for Electromagnetic Processing of Materials, Northeastern University
摘 要：We have experimentally determined the as-cast structures of semi-continuous casting 7075 aluminum alloy obtained in the presence of dual-frequency electromagnetic field.Results suggest that the use of dual-frequency electromagnetic field during the semi-continuous casting process of 7075 aluminum alloy ingots reduces the thickness of the surface segregation layer,increases the height of the melt meniscus,enhances the surface quality of the ingot,and changes the surface morphology of the melt pool.Moreover,low-frequency electromagnetic field was found to show the most obvious influence on improving the as-cast structure because of its high permeability in conductors.
关键词：
