Texture transformations near the bonding zones of the three-layer Al/Ti/Al explosively welded clads

Chulist, R.; Fronczek, D.M.; Szulc, Z.; Wojewoda-Budka, J.

doi:10.1016/j.matchar.2017.05.007

Cited by 38 publications

(13 citation statements)

References 36 publications

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“…Our previous study showed that already after EXW process the significant difference of two interfaces may be observed [1,2]. The upper interface, located closer to the detonation material and therefore exposed to greater plastic deformation, possessed a wavy morphology and is composed of fine grains of light contrast in dark matrix.…”

Section: Resultsmentioning

confidence: 98%

“…Depending on the experimental conditions a wavy or planar interface can be formed. Previous observations (SEM, TEM) of such interfaces demonstrated that they are composed of very fine grained Al with locally present intermetallic phases such as TiAl 3 , TiAl, Ti 3 Al and metastable TiAl 2 , which are present in a larger amount inside the nodes areas but also between them [1,2]. Further annealing of such joined materials is associated with production of metallic-intermetallic composite materials, which may found potential application as ballistic armors.…”

Section: Introductionmentioning

confidence: 99%

“…Due to this the joined materials undergo severe plastic deformation, which changes with respect to the localization of detonation materials [1,2]. Depending on the experimental conditions a wavy or planar interface can be formed.…”

Section: Introductionmentioning

confidence: 99%

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Growth kinetics of TiAl 3 phase in annealed Al/Ti/Al explosively welded clads

et al. 2017

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Growth kinetics of TiAl 3 phase in annealed Al/Ti/Al explosively welded clads

et al. 2017

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“…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%

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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“…Due to the extreme conditions in explosive welding process, chemical equilibrium was not achieved. Consequently, this may exhibit various kinds of intermetallics at different metastable equilibrium states [49]. Ti-Al has three main titanium aluminides TiAl, TiAl 3 , and Ti 3 Al.…”

Section: Microstructure Of Welding Interface After Heat Treatmentmentioning

confidence: 99%

Experimental and Numerical Study on Microstructure and Mechanical Properties of Ti-6Al-4V/Al-1060 Explosive Welding

Mahmood

Dai

Chen

et al. 2019

Metals

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The aim of this paper is to study the microstructure and mechanical properties of the Ti6Al4V/Al-1060 plate by explosive welding before and after heat treatment. The welded interface is smooth and straight without any jet trapping. The disturbances near the interface, circular and random pores of Al-1060, and beta phase grains of Ti6Al4V have been observed by Scanning electron microscopy (SEM). Heat treatment reduces pores significantly and generates a titanium-island-like morphology. Energy dispersive spectroscopy (EDS) analysis results show that the maximum portion of the interfacial zone existed in the aluminium side, which is composed of three intermetallic phases: TiAl, TiAl2 and TiAl3. Heat treatment resulted in the enlargement of the interfacial zone and conversion of intermentallic phases. Tensile test, shear test, bending test and hardness test were performed to examine the mechanical properties including welding joint qualities. The results of mechanical tests show that the tensile strength and welding joint strength of the interfacial region are larger than one of its constituent material (Al-1060), the microhardness near the interface is maximum. Besides, tensile strength, shear strength and microhardness of heat treated samples are smaller than unheat treated. Smooth particle hydrodynamic (SPH) method is used to simulate the transient behaviour of both materials at the interface. Transient pressure, plastic deformation and temperature on the flyer and base side during the welding process were obtained and analyzed. Furthermore, the numerical simulation identified that almost straight bonding structure is formed on the interface, which is in agreement with experimental observation.

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Texture transformations near the bonding zones of the three-layer Al/Ti/Al explosively welded clads

Cited by 38 publications

References 36 publications

Growth kinetics of TiAl 3 phase in annealed Al/Ti/Al explosively welded clads

Growth kinetics of TiAl 3 phase in annealed Al/Ti/Al explosively welded clads

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

Experimental and Numerical Study on Microstructure and Mechanical Properties of Ti-6Al-4V/Al-1060 Explosive Welding

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