Microstructure and Mechanical Properties of 2219 Aluminum Alloy/T2 Copper Explosively Welded Composite Plate

Zhang, Dengkui; Wu, Zhisheng; Li, Yan; Liu, Linjie

doi:10.1007/s11665-022-06983-2

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…To ensure the quality of the product, repair welding often becomes a way to repair defects. Based on the barrel principle, the weakest link in welded structural parts is the repair welding joint, which is the key point to evaluate the welding quality of a structural part [2][3][4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

Performance analysis on VPTIG repair welding joint of 2219 aluminum alloy

Li,

Song,

2024

J. Phys.: Conf. Ser.

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When the welded joint of 2219 aluminum alloy has defects, the high-frequency VPTIG is used for welding repair. The mechanism of control is proposed for the repair welding joint, and the process route for satisfying the repair welding joint of 2219-T87 aluminum alloy is formulated to reduce the influence of overall performance on the joint local repair welding position. The research results show that the DC-EN of VPTIG coupled to pulse current at a frequency of 20-25 KHZ is helpful to restrain the metallurgical defects such as pores and refine the grain of the fusion zone, to ensure the comprehensive performance of the repair welding joint.

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Section: Introductionmentioning

confidence: 99%

Performance analysis on VPTIG repair welding joint of 2219 aluminum alloy

Li,

Song,

2024

J. Phys.: Conf. Ser.

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Effect of Heat Treatment on the Interfacial Structure and Microstructure of Al/Al/Cu Composites Prepared by Different Accumulative Roll Bonding Passes

Lei,

Zhang,

Zhao

et al. 2024

Adv Eng Mater

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The effects of heat treatment ((300–500 °C) × 30 min) on the interfacial structure, microstructure, and tensile properties of Al4343/Al3003/Cu composites prepared by different accumulative roll bonding (ARB) passes are studied by scanning electron microscopy, energy dispersion spectrometry, electron backscattered diffraction, and tensile tests at room temperature. The results show that the total thickness of the diffusion layer at the Al3003/Cu interface in the same ARB pass Al/Al/Cu composite increases with the increase in temperature. At the same temperature, the total thickness of the diffusion layer at the Al3003/Cu interface increases from ARB0 to ARB3 passes and decreases at ARB5 passes. In the same ARB pass Al/Al/Cu composites, the grains of Al4343 grow with the increase of temperature; the grain of Al3003 increases slightly from 300 to 400 °C, and grows along the interface direction after 500 °C. After 400 and 500 °C, the final average grain size of Cu decreases from ARB0 to ARB3 passes and increases slightly at ARB5 passes. The tensile properties of the composites are affected by recovery and recrystallization at lower temperatures and ARB passes, and by the total thickness and volume fraction of the diffusion layer at higher temperatures and ARB passes.

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