| 等离子束感生磁场对表面冶金的影响 |
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| 引用本文： | 曹光明,刘均波,李惠琪,于洪爱.等离子束感生磁场对表面冶金的影响[J].潍坊学院学报,2007,7(6):36-39. |
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| 作者姓名： | 曹光明 刘均波 李惠琪 于洪爱 |
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| 作者单位： | 1. 潍坊学院,山东,潍坊,261061
2. 山东科技大学,山东,青岛,266510 |
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| 摘 要： | 在表面冶金过程中等离子束产生感生磁场,使熔池内液态金属产生对流运动。电磁搅拌可以抑制柱状晶的生长,有利于等轴晶的形成。感生磁场具有电磁净化的作用,可以有效地消除杂质颗粒以及偏析、负偏析和气孔形成的机率。同时感生磁场会促进细小亚稳相、纳米晶以及非晶态固体的生成。
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| 关 键 词： | 感生磁场 等离子束 表面冶金 电磁净化 |
| 文章编号： | 1671-4288（2007）06-0036-04 |
| 收稿时间： | 2007-10-23 |
| 修稿时间： | 2007年10月23 |
The Effect of Induced Electromagnetic Field Produced by Plasma Jet on Surface Metallurgy |
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| CAO Guang-ming,LIU Jun-bo,LI Hui-qi,YU Hong-ai.The Effect of Induced Electromagnetic Field Produced by Plasma Jet on Surface Metallurgy[J].Journal of Weifang University,2007,7(6):36-39. |
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| Authors: | CAO Guang-ming LIU Jun-bo LI Hui-qi YU Hong-ai |
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| Institution: | 1 Weifang University, Weifang 261061, China; 2Shandong University of Science and Technology, Qingdao 266510, China |
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| Abstract: | Plasma transferred arc produces the induced electromagnetic field that makes liquid metal convect in molten pool in the surface metallurgical course.Electromagnetic mixing suppresses growth of columnar crystal and accelerates formation of equiax crystal.The induced electromagnetic field possesses the action of electromagnetic purification,and effectively removes formation of impurity grain,segregation,negative segregation and gas cavity.At the same time,the induced electromagnetic field facilitates the generation of fine metastable phase,nanocrystal and amorphous solid. |
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| Keywords: | the induced electromagnetic field plasma transferred arc surface metallurgy electromagnetic purification |
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