Experimental and numerical analysis of the formation behavior of intermediate layers at explosive welded Al/Fe joint interfaces

Aizawa, Yoshihiko; Nishiwaki, Junto; Harada, Yoshio; Muraishi, Shinji; Kumai, Shinji

doi:10.1016/j.jmapro.2016.08.002

Cited by 78 publications

(23 citation statements)

References 24 publications

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“…[1] Many of the studies presented in the literature are focused specifically on the EXW process. As confirmed by various attempts, the joining of flat surfaces [6][7][8][9] or tubes [10][11][12] can be easily performed by this method. Furthermore, the process can be carried out both under water [13][14][15][16] and under air atmospheres.…”

Section: Introductionmentioning

confidence: 92%

“…[1] These methods are economically beneficial and allow nanostructured materials to be obtained, for example, consolidated samples from nanometric copper powders, [2] Ni/NiAl metal-matrix composites containing up to 57 vol pct NiAl particulate, [3] new shapes of materials, [4,5] and integrally bonded composites. [6][7][8][9] These advantages make the methods suitable for a large number of technological applications. [1] Many of the studies presented in the literature are focused specifically on the EXW process.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the process can be carried out both under water [13][14][15][16] and under air atmospheres. [6][7][8][9][10][11]17,18] This method is steadily increasing its potential applications and improving the obtained results. As a first example, the works completed by Gulenc et al [19] in producing wire-reinforced multilayer composites are discussed.…”

Section: Introductionmentioning

confidence: 99%

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Microstructural and Phase Composition Differences Across the Interfaces in Al/Ti/Al Explosively Welded Clads

Fronczek

Chulist

Lityńska‐Dobrzyńska

et al. 2017

Metall Mater Trans A

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The microstructure and phase composition of Al/Ti/Al interfaces with respect to their localization were investigated. An aluminum-flyer plate exhibited finer grains located close to the upper interface than those present within the aluminum-base plate. The same tendency, but with a higher number of twins, was observed for titanium. Good quality bonding with a wavy shape and four intermetallic phases, namely, TiAl 3 , TiAl, TiAl 2 , and Ti 3 Al, was only obtained at the interface closer to the explosive material. The other interface was planar with three intermetallic compounds, excluding the metastable TiAl 2 phase. As a result of a 100-hour annealing at 903 K (630°C), an Al/TiAl 3 /Ti/TiAl 3 /Al sandwich was manufactured, formed with single crystalline Al layers. A substantial difference between the intermetallic layer thicknesses was measured, with 235.3 and 167.4 lm obtained for the layers corresponding to the upper and lower interfaces, respectively. An examination by transmission electron microscopy of a thin foil taken from the interface area after a 1-hour annealing at 825 K (552°C) showed a mixture of randomly located TiAl 3 grains within the aluminum. Finally, the hardness results were correlated with the microstructural changes across the samples.

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Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructural and Phase Composition Differences Across the Interfaces in Al/Ti/Al Explosively Welded Clads

Fronczek

Chulist

Lityńska‐Dobrzyńska

et al. 2017

Metall Mater Trans A

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“…[7,9,11]. It was originally developed by Century Dynamics (Concord, CA, USA) and later embedded as a software module within the ANSYS workbench platform.…”

Section: Explosive Welding Modelmentioning

confidence: 99%

“…The results of the experiments and numerical simulations were completely consistent. Aizawa et al [9] investigated the chemical composition, the intermediate layers at explosive-welded Al/Fe joint interfaces by experimental and numerical analyses. The temperature distribution near the interface shown by the SPH simulation explained the formation mechanism of two types of intermetallic compound.…”

Section: Introductionmentioning

confidence: 99%

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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Explosive Welding of Aluminum and Cast Iron for Potential Transportation and Structural Applications

Sherpa,

Yu,

Inao

et al. 2023

Adv Eng Mater

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This study explores the feasibility of explosive welding to join dissimilar materials: aluminum (JIS A1050‐H24) and two cast iron types (JIS G 5501 and JIS G 5502), which are challenging to weld due to the presence of graphite in the cast iron. Further, the impact of explosive thickness (28, 38, and 47 mm) on weld quality is investigated, considering microstructure and mechanical behavior. Increasing explosive thickness correlates with a thicker local melted zone. Remarkably, in investigations, a novel morphology that diverges from conventional patterns is observed. The weld interface of explosively bonded materials exhibits anchor formation, a unique interlocking structure. These anchors play a significant role in establishing a robust mechanism between bonded surfaces. JIS A1050‐H24 shows minimal hardness variation, while cast iron exhibits significant variations with increased explosive thickness. Tensile shear tests showcase robust clad plate strength, with fractures primarily in JIS A1050‐H24 regions instead of at the interface. The highest tensile shear strength is achieved with an explosive thickness of 38 mm. Overall, explosive welding of aluminum with cast iron creates a strong, durable, and lightweight material with enhanced performance characteristics, making it promising for diverse industrial applications due to its outstanding properties.

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Experimental and numerical analysis of the formation behavior of intermediate layers at explosive welded Al/Fe joint interfaces

Cited by 78 publications

References 24 publications

Microstructural and Phase Composition Differences Across the Interfaces in Al/Ti/Al Explosively Welded Clads

Microstructural and Phase Composition Differences Across the Interfaces in Al/Ti/Al Explosively Welded Clads

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

Explosive Welding of Aluminum and Cast Iron for Potential Transportation and Structural Applications

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