Effect of axial magnetic field in the laser beam welding of stainless steel to aluminum alloy
Effect of axial magnetic field in the laser beam welding of stainless steel to aluminum alloy
复制标题
轴向磁场对不锈钢与铝合金激光束焊接的影响
DOI：
10.1016/j.matdes.2016.07.064
复制
发表时间：
2016-11-05
影响因子：
8.4
通讯作者：
Yue, Chen
中科院分区：
文献类型：
--
作者：
Chen, Rong;Wang, Chunming;Yue, Chen
由于外加磁场对焊接熔池动力学的有利影响，在焊接过程中受到了人们的青睐。采用磁场垂直于焊接方向的小孔方式对不锈钢301与5754铝合金进行了搭接焊接。结果表明，外加磁场可以通过熔池中感应的洛伦兹力和热电磁场力改变焊缝的外观和组织。此外，由于Al原子的扩散抑制了钢/铝之间的反应面积，从而降低了显微硬度，使横向拉伸力从1.81kN提高到2.91kN，提高了54.6%。(C)2016爱思唯尔有限公司。保留所有权利。
External magnetic field has been favored in the welding, due to the beneficial effects on the weld pool dynamics. The overlapping welding in a keyhole mode with a magnetic field perpendicular to the welding direction was carried out between stainless steel 301 and aluminumalloy 5754 in this study. The results indicated that the application of the magnetic field can modify the weld bead appearance and microstructure of the weld by the Lorenz force and thermoelectric magnetic force induced in the molten pool. Furthermore, the reaction area between steel/Al decreased due to the diffusion of the Al atoms was suppressed, consequently reducing the microhardness and then strengthening the transverse tensile force by 54.6% from 1.81 kN to 2.91 kN. (C) 2016 Elsevier Ltd. All rights reserved.