Microstructural Characteristics and Mechanical Properties of 2205/AZ31B Laminates Fabricated by Explosive Welding

Li, Yan; Wu, Zhaohui

doi:10.3390/met7040125

Cited by 27 publications

(19 citation statements)

References 37 publications

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“…A very low pressure leads to nonbonding [30]. Experimental studies about explosive welding have come to similar conclusions, as reported in [4,32], namely nonbonding appeared near the detonation edges, which is called the boundary effect in explosive welding. The low pressure is the essential reason for the boundary effect of explosive welding.…”

Section: Pressure Distributionsupporting

confidence: 61%

“…Figure 7 depicts the pressure-time curves of special points. Along the propagation of the detonation wave, the minimum pressure was obtained near the detonation points (Points 1 and 7), which can be attributed to the unstable energy during the initial detonation stage [4,30,31]. A very low pressure leads to nonbonding [30].…”

Section: Pressure Distributionmentioning

confidence: 98%

“…The jet breaks the oxide layer and impurities from the two adhering surfaces and makes it possible for the atoms of the two materials to approach within inter-atomic distances [3]. A jet was, thus, considered to be a necessary condition for achieving the metallurgical bonding of two materials [4,29].…”

Section: Kinematic Characteristics Of Exw and Jet Formationmentioning

confidence: 99%

“…A jet is a characteristic phenomenon of explosive welding, which is impossible to observe in the experiment. As is known to all, the clean bonding surfaces are very important for acquiring a firm bond in explosive welding [4,28]. The jet breaks the oxide layer and impurities from the two adhering surfaces and makes it possible for the atoms of the two materials to approach within inter-atomic distances [3].…”

Section: Kinematic Characteristics Of Exw and Jet Formationmentioning

confidence: 99%

“…Explosive welding (EXW) is one of the effective technologies to manufacture laminated metal composites with controllable thermal conductivity, ideal mechanical properties, better erosion resistance, and obvious economic benefits. Over 260 various similar and dissimilar materials can be fabricated by using explosive welding techniques [1,3,4].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation of Ti/Al Bimetal Composite Fabricated by Explosive Welding

Liu

et al. 2017

Metals

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Abstract:In this paper, a 2D numerical model that is more physically realistic was established to simulate the complete process of Ti/Al explosive welding. Basing on the ANSYS/AUTODYN software package, the smoothed particle hydrodynamics (SPH) and arbitrary Lagrangian-Eulerian (ALE) were used for running this simulation. The numerical model can capture the typical physics in the explosive welding process, including the expansion of explosives, flyer plate bending, the impact of metal plates, jetting, and the wavy interface. The variable physical parameters during the explosive welding process were discussed. Most parts of the jet originated from the aluminum plate. According to the model, the jet velocity reached 7402 m/s. The pressure at the detonation point was too small to make the two plates to bond. The pressure could reach an order of magnitude of 10 7 kPa when the detonation energy tended to be stable and was far more than the yield strength of both materials, which resulted in an obvious narrow region of plastic strain emerging close to the collision zone. The signs of shear stresses between the two plates were the opposite. The interface morphology changed from straight to wave along the propagation of the detonation wave in the simulation, which was consistent with the experimental results.

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Section: Pressure Distributionsupporting

confidence: 61%

Section: Pressure Distributionmentioning

confidence: 98%

Section: Kinematic Characteristics Of Exw and Jet Formationmentioning

confidence: 99%

Section: Kinematic Characteristics Of Exw and Jet Formationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation of Ti/Al Bimetal Composite Fabricated by Explosive Welding

Liu

et al. 2017

Metals

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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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