[1]龙琼,钟云波,余正平,等.外加磁场下焊接技术的研究现状[J].中国材料进展,2020,(06):472-479.
 LONG Qiong,ZHONG Yunbo,YU Zhengping,et al.Recent Progress in Welding Technology under External Magnetic Fields[J].MATERIALS CHINA,2020,(06):472-479.
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外加磁场下焊接技术的研究现状()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2020年第06期
页码:
472-479
栏目:
出版日期:
2020-06-30

文章信息/Info

Title:
Recent Progress in Welding Technology under External Magnetic Fields
文章编号:
1674-3962(2020)06-0472-08
作者:
龙琼1钟云波2余正平1龙绍檑1李娟1伍玉娇1
(1. 贵州理工学院 贵州省轻金属材料制备技术重点实验室,贵州 贵阳 550003)(2. 上海大学材料科学与工程学院 省部共建高品质特殊钢冶金与制备国家重点实验室,上海 200444)
Author(s):
LONG Qiong1ZHONG Yunbo2YU Zhengping1LONG Shaolei1LI Juan1WU Yujiao1
(1. Guizhou Key Laboratory for Preparation of Light Metal Materials, Guizhou Institute of Technology, Guiyang 550003, China) (2. State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China)
关键词:
磁场焊接组织电磁搅拌展望
Keywords:
magnetic field welding microstructure electromagnetic stirring prospect
分类号:
TG456.9
文献标志码:
A
摘要:
近年来,磁控焊接技术受到了国内外研究人员的广泛重视。在焊接过程及焊后热处理过程中施加磁场,可以显著改善熔池金属的传质及传热行为,细化晶粒组织,减少成分偏析,促使第二相均匀化弥散分布,降低气孔、热裂纹等焊接缺陷的敏感性,显著提升焊缝力学性能。综述了国内外近年来磁控焊接技术的研究成果,对比了外加磁场与无磁场下焊接的特点,总结了Lorentz力、热电磁力、磁场力、磁Gibbs自由能对焊接过程的影响机制,以及磁场对焊缝微观组织、电弧形态、力学性能的影响规律。提出开发多尺度磁场下磁控复合焊接技术、磁控热处理技术结合焊接过程中电流场、温度场、应力场(应变场)有限元分析是将来磁控焊接技术的研究重点。
Abstract:
In recent years, magnetron welding technology has received extensive attention at home and abroad. The application of magnetic field in the process of welding and postweld heat treatment can significantly improve the mass transfer and heat transfer behavior of molten pool metal, refine the microstructure, reduce segregation, promote the dispersed distribution of second phase, reduce the sensitivity of welding defects such as pore and crack, and thus significantly improve the mechanical properties of the weld zone. The influence mechanism of Lorentz force, magnetic field force, thermoelectric electromagnetic force, and magnetic Gibbs free energy on the welding process is summarized. At the same time, the influence rule of the magnetic field on microstructure, arc shape, and mechanical properties of the weld seam, and the corresponding principle are analyzed and discussed. It is pointed out that the development of multi-scale magnetic field, magnetron hybrid welding technology, magnetron heat treatment technology combined with finite element analysis of the current field, temperature field and stress field (strain field) in the welding process will be the research focus of magnetron welding technology in the future.

备注/Memo

备注/Memo:
收稿日期:2019-08-14修回日期:2019-11-07 基金项目:国家自然科学基金项目(51664009);贵州省科技计划项目(黔科合LH字\[2016\]7101);贵州省教育厅创新群体项目(黔教合KY字\[2016\]043); 贵州理工学院项目(XJGC:20161212, KJZX17-015)第一作者:龙琼,男,1984年生,副教授, Email:qiongl2030@163.com
更新日期/Last Update: 2020-05-28