Numerical prediction for temperature and microstructure of A283GRC steel and 5052 aluminium alloy during induction-pressure welding

Gao, Kai; Zhu, Liubo

doi:10.1016/j.ijthermalsci.2021.107456

Cited by 9 publications

(3 citation statements)

References 23 publications

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“…The RSW joints are composed of a steel nugget, the heat-affected zone, the interfacial layer, and an aluminum nugget. In the center of the nugget, the tongue-like interfacial intermetallic compound layer was observed between the aluminum nugget and the steel ( Figure 3 c), which plays an important role in the metallurgical combinations of steel and aluminum [ 29 ]. At the interface front in the aluminum nugget, significant dendrite microstructure formed whereas the shrinkage cavity richened in Si and O, which seems visible on the aluminum side as pointed out at position 1 in Figure 3 c. The presence of the shrinkage might negatively impact the mechanical properties of the joints.…”

Section: Resultsmentioning

confidence: 99%

Corrosion Behavior and Mechanical Property of 5182 Aluminum/DP780 Steel Resistance Spot Welding Joints

Shi,

Zhang,

et al. 2024

Materials

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Corrosion behavior is critical to the application of lightweight aluminum/steel joints using new resistance spot welding (RSW) technology. The study investigated the corrosion mechanism and the shear strength of RSW joints comprising 1.2 mm 5182 aluminum and 1.5 mm DP780 galvanized steel. Electrochemical corrosion tests were conducted on the base materials and various positions of the welds in a 3.5% NaCl solution. This result revealed that the corrosion susceptibility of the interfacial intermetallic compound (IMC) layer was not accelerated by the aluminum nugget because of the noble corrosion potential. Subsequently, the spray acceleration test was employed to investigate the corrosion mechanism. It is noteworthy that microcracks, as well as regions enriched with silicon and oxygen at the interface front, are preferential to corrosion during salt spray exposure, instead of the IMC layer. Moreover, the shear strength of the joints decreases with the reduction in the effective joint area after the salt spray exposure of the weld joints. This research systematically explored the corrosion behavior and its relationship with the mechanical properties of Al alloy/steel RSW joints.

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Section: Resultsmentioning

confidence: 99%

Corrosion Behavior and Mechanical Property of 5182 Aluminum/DP780 Steel Resistance Spot Welding Joints

Shi,

Zhang,

et al. 2024

Materials

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“…The trend of the thermal cycle temperature curve was also consistent with previous research results. 3.…”

Section: Discussionmentioning

confidence: 99%

“…The most important joining method for 6082-T6 aluminum alloys is welding. Common welding methods include brazing [1], pressure welding [2,3], and fusion welding [4], among which fusion welding has the advantages of high welding efficiency, strong local heating ability, high welding strength, and good microstructure properties after welding. MIG welding is the most common welding method for fusion welding.…”

Section: Introductionmentioning

confidence: 99%

Study on the Morphology, Microstructure, and Properties of 6082-T6 Aluminum Alloy Joints in MIG Welding

Cui

Tian

et al. 2023

Metals

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In this paper, metal inert gas (MIG) welding of 6082-T6 aluminum alloy with a thickness of 4 mm was simulated using a double ellipsoidal heat source. Based on the simulation results, the evolution of the microstructure, the strengthening mechanism of mechanical properties, and the corrosion characteristics of the welded joint were studied further. The thermal cycle curve of the welded joint was obtained through numerical simulation. When the heat input was 2.34–2.75 KJ/mm, the temperature of the welded joint reached the melting point of the material. With the increase in welding heat input, the weld metal (WM) organization changed from the dendrite to the cellular crystal transformation and presented a uniform distribution. The precipitation of the strengthened phase was inhibited at 2.75 KJ/mm. When the heat input changed from small to large, the tensile strength and toughness first increased and then weakened. Dimple distribution of tensile fractures was observed with a scanning electron microscope. When the welding heat input was 2.57 KJ/mm, the mechanical properties of the joint were the best. The tensile strength can reach 76.62% of the base material, and the elongation after breaking can reach 59.38% of the base material. However, it was concluded through studying electrochemical corrosion that the corrosion resistance of welded joints under this parameter was the worst. This may be caused by the presence of Cu, Fe, Si, Mg, and other compounds, and was proven to be Mg2Si through EDS analysis.

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Digital twin modeling method of the temperature field of thermo-compression bonding blade based on generative adversarial networks

Deng,

Huang,

Yang

et al. 2024

Advances in Engineering Software

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Numerical prediction for temperature and microstructure of A283GRC steel and 5052 aluminium alloy during induction-pressure welding

Cited by 9 publications

References 23 publications

Corrosion Behavior and Mechanical Property of 5182 Aluminum/DP780 Steel Resistance Spot Welding Joints

Corrosion Behavior and Mechanical Property of 5182 Aluminum/DP780 Steel Resistance Spot Welding Joints

Study on the Morphology, Microstructure, and Properties of 6082-T6 Aluminum Alloy Joints in MIG Welding

Digital twin modeling method of the temperature field of thermo-compression bonding blade based on generative adversarial networks

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