In this paper, the effect of alternating longitudinal electromagnetic fields on the microstructure, composition segregation and solid solubility of solute elements in aluminium alloy weld beads is studied. The results show that the X-ray diffraction peaks of the deposited aluminium alloy layer under the external magnetic field are much less intense than those for the alloy prepared without the external magnetic field. The diffraction peak intensities from different crystallographic planes in the structure slightly differ under the action of different magnetic field frequencies. As the excitation current increases, the increase in Mg segregation is obvious. With an increase in the magnetic field frequency and excitation current, the external magnetic field promotes the solid solubility of solute Mg in Al.
MartinJHYahataBDHundleyJM3D printing of high-strength aluminium alloys. Nature. 2017;549:365–369.
2.
AboulkhairNTSimonelliMParryL3D printing of aluminium alloys: additive manufacturing of aluminium alloys using selective laser melting. Prog Mater Sci. 2019;106:100578.
3.
NithinAMDavidsonMJRaoCSP.Mechanical and metallurgical studies on thixoextruded Al-Si alloys. J Mater Eng Perform. 2020;29:6378–6389.
4.
LuijendijkT.Welding of dissimilar aluminium alloys. J Mater Process Tech. 2000;103:29–35.
5.
LiottiELuiAVincentRA synchrotron X-ray radiography study of dendrite fragmentation induced by a pulsed electromagnetic field in an A1-15Cu alloy. Acta Mater. 2014;70:228–239.
6.
PokusováMMurgašováMBertaIElectromagnetic method to control the solidification of Al 99. 99. J Mater Eng Perform. 2019;28:3929–3934.
7.
LiQXiaZGuoYEnhancement of inclusion removal in electroslag remelted M2 high-speed steel assisted by axial static magnetic field. Metall Mater Trans A. 2021;52:5135–5139.
8.
BoldyrevAMBirzhevVAChernykhAV.Special features of melting electrode metal when welding in an external longitudinal magnetic field. Weld Int. 1992;6:812–814.
9.
TseHCManHCYueTM.Effect of magnetic field on plasma control during CO2 laser welding. Opt Laser Technol. 1999;31:363–368.
10.
LiYBLinZQChenGLStudy on moving GTA weld pool in an externally applied longitudinal magnetic field with experimental and finite element methods. Model Simul Mater SC. 2002;10:781.
11.
CurielFFGarcíaRLópezVHEffect of magnetic field applied during gas metal arc welding on the resistance to localised corrosion of the heat affected zone in AISI 304 stainless steel. Corros Sci. 2011;53:2393–2399.
12.
BrownDC.The effect of electromagnetic stirring and mechanical vibration. Weld J. 1962;41:241–250.
13.
MousaviMGHermansMJMRichardsonIMGrain refinement due to grain detachment in electromagnetically stirred AA7020 welds. Sci Technol Weld Join. 2003;8:309–312.
14.
LimYCYuXChoJHEffect of magnetic stirring on grain structure refinement: Part 1-Autogenous nickel alloy welds. Sci Technol Weld Join. 2010;15:583–589.
15.
LiuYSunQLiuJEffect of axial external magnetic field on cold metal transfer welds of aluminum alloy and stainless steel. Mater Lett. 2015;152:29–31.
16.
LiYZouWLeeBResearch progress of aluminum alloy welding technology. Int J Adv Manuf Tech. 2020;109:1207–1218.
17.
ZhuHHuangLLiJStrengthening mechanism in laser-welded 2219 aluminium alloy under the cooperative effects of aging treatment and pulsed electromagnetic loadings. Mater Sci Eng A. 2018;714:124–139.
18.
LuoJ. Study on fluid flow and heat transfer of external longitudinal magnetic field gas tungsten arc weld pool. PhD Thesis Xi'an Jiaotong University. 1999; 58–70.
19.
LiYLiuPWangJXRD and SEM analysis near the diffusion bonding interface of Mg/Al dissimilar materials. Vacuum. 2007;82:15–19.
20.
YanFWangXChaiFImprovement of microstructure and performance for steel/Al welds produced by magnetic field assisted laser welding. Opt Laser Technol. 2019;113:164–170.
21.
ZhouY.Material analysis method. China: China Machine Press; 2011. p. 1–57
22.
ChenKLiuHLiuYC.Effect of promotively-solutionizing heat treatment on themechanical properties and fracture behavior of Al-Zn-Mg-Cu alloys. Acta Metall Sin-Engl. 2001;37(29).
23.
ZhaoZHCuiJZZuoYB.Distribution of magnetic field and its effects on macrosegregation of electromagnetic HDC casting aluminum alloy. Zhuzao(Foundry). 2005;54:241–245.
24.
ZhangBJLuGMCuiJZ.Effect of electro-magnetic frequency on microstructures of continuous casting aluminum alloys. Mater Sci Technol. 2002;18:401–403.
25.
CaoLZhouQLiuHMechanism investigation of the influence of the magnetic field on the molten pool behavior during laser welding of aluminum alloy. Int J Heat Mass Transf. 2020;162:120390.
26.
LiuJHaoWXDaDA.Effect of electro-magnetic fields on the separation of lithium in Al-Li alloy with higher Li contents. Foundry. 2004;53:875–878.
27.
DanhNCRajanKWallaceW.A TEM study of microstructural changes during retrogression and reaging in 7075 aluminum. Metall Mater Trans A. 1983;14:1843–1850.
28.
ParkJKArdellAJ.Microstructure of commercial 7075 Al alloy in the T651 and T7 tempers. Mater Trans A. 1983;14:1957–1965.
29.
OhnishiTHamamotoTTsubakinoHStress corrosion cracking of RRA-treated 7050 aluminum alloy. Keikinzoku. 1993;43:308–313.
30.
ShihHCHoNJHuangJCPrecipitation behaviors in Al-Cu-Mg and 2024 aluminum alloys. Mater Trans A. 1996;27:2479–2494.
31.
LiYWangTFengYS.Relationship between the heat-treatment temperature and properties for rapidly solidified high strength Al-Zn-Co alloy. Mater Trans A. 1996;20:23–26.
32.
VivesC.Electromagnetic refining of aluminum alloys by the CREM process: Part I. Working principle and metallurgical results. Metall Trans B. 1989;20:623–629.
