Interfacial microstructure evolution and deformation mechanism in an explosively welded Al/Mg alloy plate

Zhang, Tingting; Zhang, Wei; Zhou, Jun; Zhang, Yan

doi:10.1007/s10853-019-03529-1

Cited by 17 publications

(1 citation statement)

References 32 publications

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“…Three different flyer metals impacted the same base metal plate. Earlier researches [31][32][33] have been proved that the typical wavy interface is controlled and formed by the periodic oscillation in the jet flow at the collision zone between the flyer and base plate. However, during the collision zone, the deformation degree and interfacial morphologies at the interface were different after explosive welding for different materials and welding parameters.…”

Section: Interfacial Morphologies Of the Clad Platesmentioning

confidence: 99%

Interfacial Morphology and Bonding Mechanism of Explosive Weld Joints

Zhang

Wang

Zhang

et al. 2021

Chin. J. Mech. Eng.

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Interfacial structure greatly affects the mechanical properties of laminated plates. However, the critical material properties that impact the interfacial morphology, appearance, and associated bonding mechanism of explosive welded plates are still unknown. In this paper, the same base plate (AZ31B alloy) and different flyer metals (aluminum alloy, copper, and stainless steel) were used to investigate interfacial morphology and structure. SEM and TEM results showed that typical sine wave, wave-like, and half-wave-like interfaces were found at the bonding interfaces of Al/Mg, Cu/Mg and SS/Mg clad plates, respectively. The different interfacial morphologies were mainly due to the differences in hardness and yield strength between the flyer and base metals. The results of the microstructural distribution at the bonding interface indicated metallurgical bonding, instead of the commonly believed solid-state bonding, in the explosive welded clad plate. In addition, the shear strength of the bonding interface of the explosive welded Al/Mg, Cu/Mg and SS/Mg clad plates can reach up to 201.2 MPa, 147.8 MPa, and 128.4 MPa, respectively. The proposed research provides the design basis for laminated composite metal plates fabrication by explosive welding technology.

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Section: Interfacial Morphologies Of the Clad Platesmentioning

confidence: 99%

Interfacial Morphology and Bonding Mechanism of Explosive Weld Joints

Zhang

Wang

Zhang

et al. 2021

Chin. J. Mech. Eng.

Self Cite

View full text Add to dashboard Cite

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Insight on Interfacial Microstructure and Corrosion Characteristics of Mg/Al Explosive Welded Composite Plates

Lu,

Li,

Liang

et al. 2024

Adv Eng Mater

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Interfacial corrosion performance is crucial to the reliability of Mg/Al explosively welded composite plates. Nevertheless, more understanding is required concerning such interfacial corrosion. In this work, a combination of numerical simulation and experimental investigation was used to clarify the microstructure evolutions of AZ80‐Mg alloy/1060‐Al explosively welded composite plate. The formation of interfacial wave structure and the thermodynamic state were insighted through numerical simulation, which further enhanced the correlation between the interfacial microstructural heterogeneities and the interfacial corrosion characteristics. Galvanic corrosion was produced by the significant potential difference between the AZ80‐Mg and 1060‐Al, with multiple micro‐galvanic couples in the vortex zone. The corrosion occurred near the interface and gradually advanced away from the interface. After 1 h, the composite plates exhibited severe corrosion with deep pits on the Mg side, while the Al side was less affected. Within the vortex, however, the Mg‐rich region underwent little corrosion, whereas the Al‐rich region underwent significant corrosion, attributed to the increase in pH value caused by the Mg corrosion.

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