Effect of the simultaneous application of a high static magnetic field and a low alternating current on grain structure and grain boundary of pure aluminum

查看全文 作　　者：Chengshuai [1]Li;Shaodong [1]Hu;Zhongming [1]Ren;Yves [2]Fautrelle;Xi [1,2]Li

机构地区：[1]State Key Laboratory of Advanced Special Steels,Shanghai University;[2]SIMAP-EPM-Madylam/G-INP/CNRS,PHELMA

出　　处：《Journal of Materials Science & Technology》索引2018年第34卷第12期,共8页

基　　金：supported by the European Space Agency through the Bl-inter 09 473220;the National Natural Science Foundation of China(Nos.51571056 and 51690164);the 'Shuguang Program' from Shanghai Municipal Education Commission;the Shanghai Science and Technology Committee Grant(No.15520710900) 摘　　要：Effect of the simultaneous application of a high static magnetic field and a low alternating electric current on the solidification structure of pure aluminum has been investigated. Results show that the refinement of the solidification structure is enhanced by the electric current under a certain magnetic field. However,when the magnetic field intensity exceeds a certain value, the refinement is impaired under a certain electric current. The observation by electron backscattered diffraction(EBSD) shows the complex fields have led to the increase of the low angle boundaries with the refinement. Moreover, the application of the static gradient magnetic field is capable of modifying the distribution of the refined grains. The above results may be attributed to the formation of the cavities during the electromagnetic vibration process and the high magnetic field. 关键词：Complex FIELDS HIGH magnetic field REFINEMENT GRAIN boundaries

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Effect of the simultaneous application of a high static magnetic field and a low alternating current on grain structure and grain boundary of pure aluminum

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