Improvement of microstructure and performance for steel/Al welds produced by magnetic field assisted laser welding

Yan, Fengyuan; Wang, Xianwei; Chai, Fang; Ma, Huijuan; Tian, Linli; Du, Xiaozhong; Wang, Chunming; Wang, Wei

doi:10.1016/j.optlastec.2018.12.030

Cited by 45 publications

(13 citation statements)

References 15 publications

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“…Shear strength of 128 MPa was achieved for the dual-beam compared to 71 MPa for single-beam laser-welded samples. Yan et al [83] tried to improve the microstructure and performance of steel/aluminum welds by using an external magnetic field. The XRD results of the phases formed at the weld zone are presented in Fig.…”

Section: Steel-coppermentioning

confidence: 99%

A review on dissimilar laser welding of steel-copper, steel-aluminum, aluminum-copper, and steel-nickel for electric vehicle battery manufacturing

Sadeghian

Iqbal

2022

Optics & Laser Technology

165

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Section: Steel-coppermentioning

confidence: 99%

A review on dissimilar laser welding of steel-copper, steel-aluminum, aluminum-copper, and steel-nickel for electric vehicle battery manufacturing

Sadeghian

Iqbal

2022

Optics & Laser Technology

165

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“…Several authors sought for microstructural improvements and modifications of weld pool dynamics by adding external magnetic fields to the joining system: Chen et al [80] explained that magnetic fields reduce the diffusion rates of both carbon and aluminum, reducing austenite grain size and IMC layer thickness, respectively. Later, Yan et al [81] proposed the application of an external magnetic field to assist in joining 6061 aluminum alloy to galvanized DP590 steel in lap joint configuration (see Figure 7). By positioning the steel on top and applying up to 200 mT magnetic flux density, they could improve the control of the joint cross-section (transforming it from cylindric to conic), reducing the element segregation, decreasing the occurrence of cracking, and refining the resulting microstructure.…”

Section: Lap Jointsmentioning

confidence: 99%

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Wallerstein

Salminen

Lusquiños

et al. 2021

Metals

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The development of high-performance dissimilar aluminum–steel joints is necessary to promote the feasibility of multi-material design and lightweight manufacturing. However, joining aluminum to steel is a challenging task mainly due to the formation of brittle intermetallic compounds (IMC) at the joint interface. Laser welding is considered a very promising joining process for dissimilar materials, although its application in industry is still limited by the insufficient mechanical performance of the joints. The present paper aims to give a comprehensive review of relevant recent research work on laser joining of aluminum to steel, contributing to highlighting the latest achievements that could boost acceptance of laser joining of dissimilar materials by the modern industries. To this end, the most important challenges in laser joining of aluminum to steel are presented, followed by recent approaches to overcome these challenges, the state-of-art of comprehension of IMC formation and growth, and the different strategies to minimize them.

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“…R. Chen et al [6] investigated magnetic field-stimulated laser-MIG combined jointing of 316L steel and discovered that the magnetic field could improve the fatigue resistance and reduce the ferrite of the sample. Yan et al [7] conducted laser beam welding of steel/aluminum with magnetism support and thought the magnetism support caused more iron-rich intermetallic compounds to be formed on the joint interface. Chen et al [8] applied magnetic field-assisted fiber laser welding technique for joining 304 steel and declared that the magnetic field made the breadth of the transition area wider and improve the microstructure gradient of the weld seam.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigation of magnesium/aluminum laser welding with magnetic field

Zhou

Liu

2021

Int J Adv Manuf Technol

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A three-dimensional numerical model for thermal-fluid-metallurgical coupling was established to inspect the effect from a stable longitudinal magnetic field on molten pool of magnesium/aluminum laser welding. Magnetic field-assisted laser welding platform was built to test the morphology and spectrum of the metal vapor/plasma. The scanning electron microscope (SEM) and energy dispersive spectrometry (EDS) were used to determine the morphology and element distribution of molten pool cross section. Simulation results showed that temperature gradient of molten pool was reduced, heat distribution became uniform, and keyhole area was enlarged. In addition, the flow velocity of molten pool was increased, the vorticity of molten pool was improved, and the flow region of liquid metal was enlarged. Experimental results showed that penetration of molten pool was deeper, the shape of welding pool tended to be symmetrical and the density of Al element distribution in welding pool was increased by magnetic field. Thus, heat and mass transfer in welding pool was promoted due to the application of magnetic field, the elements exchange and the convection of liquid metal were accelerated, and the distribution of Mg-Al compounds should be dispersed under the agitation of Lorentz force. It's predicted that the distribution of Mg-Al compounds in magnesium/aluminum laser welding would be positively affected by magnetic field, which was beneficial to control the weld quality. Hence, numerical results and experimental verification shared good consistency.

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Improvement of microstructure and performance for steel/Al welds produced by magnetic field assisted laser welding

Cited by 45 publications

References 15 publications

A review on dissimilar laser welding of steel-copper, steel-aluminum, aluminum-copper, and steel-nickel for electric vehicle battery manufacturing

A review on dissimilar laser welding of steel-copper, steel-aluminum, aluminum-copper, and steel-nickel for electric vehicle battery manufacturing

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Numerical and experimental investigation of magnesium/aluminum laser welding with magnetic field

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