Technology of explosive welding magnesium?aluminium composite joints

Trykov, Yu. P.; Shmorgun, V G; Rogozin, V D; Dolgii, Yu G

doi:10.1533/weli.17.8.661.21910

Cited by 2 publications

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“…In the literature, there are only few researches dealing with EXW of Mg alloys. 5) On the other hand, in applying EXW method for welding Al-Mg alloys, degradation of weld interfacial microstructure was encountered and the segregation of Mg was accounted for such a negative effect.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Explosively Welded Aluminum–AZ31 Magnesium Alloy Joints

2008

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The joining of wrought magnesium alloy AZ31 and commercially pure aluminum A1100 plates was performed using explosive welding technique. Several welds were made by changing the experimental parameters. Optical microscopy and scanning electron microscopy were employed to observe the morphological and microstructural variations at the interface boundary. The geometry of the interfacial profile varied from smooth to rippled form with increase in the level of kinetic energy delivered to the bonding zone. The microstructure at the boundary was free of porosity and showed unique diffusionless dissimilar bonding. Localized zones of solidified melt in some cases were observed in the vicinity of the bonding line of the wavy-interfaced welds. Elemental analysis revealed the complex intermixed microstructure of these regions, accompanying with compositional variation due to formation of the metastable intermetallic phase Al 2 Mg. The bonding strength of the welds, evaluated through shear tests, confirmed the high quality of the joints produced. Based on the experimental results the lower limit of the welding parameters which ensure achieving a satisfactory joint is proposed.

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Section: Introductionmentioning

confidence: 99%

Analysis of Explosively Welded Aluminum–AZ31 Magnesium Alloy Joints

2008

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“…A schematic "weldability window" was developed by Blazynski in 1987 that defines the conditions to achieve desirable welds [18]. Trykow et al [19] was one of the first to attempt to fabricate Al/Mg composite plates by explosive welding.…”

Section: Introductionmentioning

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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Technology of explosive welding magnesium?aluminium composite joints

Cited by 2 publications

References 0 publications

Analysis of Explosively Welded Aluminum–AZ31 Magnesium Alloy Joints

Analysis of Explosively Welded Aluminum–AZ31 Magnesium Alloy Joints

Interfacial Morphology and Bonding Mechanism of Explosive Weld Joints

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Technology of explosive welding magnesium?aluminium composite joints

Cited by 2 publications

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Analysis of Explosively Welded Aluminum&ndash;AZ31 Magnesium Alloy Joints

Analysis of Explosively Welded Aluminum&ndash;AZ31 Magnesium Alloy Joints

Interfacial Morphology and Bonding Mechanism of Explosive Weld Joints

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Analysis of Explosively Welded Aluminum–AZ31 Magnesium Alloy Joints

Analysis of Explosively Welded Aluminum–AZ31 Magnesium Alloy Joints