Microstructure and mechanical properties of Ti/Ta/Cu/Ni alloy laminate composite materials produced by explosive welding

Мали, В. И.; Батаев, А. А.; Maliutina, Iuliia N.; Кургузов, В. Д.; Батаев, И. А.; Esikov, Maksim A.; Lozhkin, V. S.

doi:10.1007/s00170-017-0887-8

Cited by 38 publications

(11 citation statements)

References 32 publications

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“…When measured across both the interfaces it was observed that there is a gradual increase in the hardness values at the interface as we approached towards it from either of the parent metals. This is in line with previous research done . This is shown for both welding combinations in Figure (a) & Figure (b) respectively.…”

Section: Characterization Of Weld Interfacesupporting

confidence: 92%

Low Velocity of Detonation Explosive Welding (LVEW) Process for Metal Joining

Sherpa

Kumar

Upadhyay

et al. 2020

Propellants Explo Pyrotec

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In this research work, low velocity of detonation (VoD) explosive welding process (LVEW) is designed and developed. For this, a unique low VoD explosive mixture (LVE-1) is prepared which consists of a 50/50 ratio of common salt and trimonite-1. The velocity of detonation of the prepared explosive mixture was measured experimentally using a pin-oscilloscopic technique and a high-speed streak camera. The process introduced in this work is applied to copper/low carbon steel and aluminium/low carbon steel joints to assess its feasibility. The explosive weldability window was plotted and flyer plate velocity was selected to achieve good quality joining. The analysis of the joints was carried out using the micro-hardness tester and optical microscope. Experiments were carried out for establishing good quality bonding and defect-free bi-metallic plates that can be widely used in aerospace, defence as well as in industrial applications.

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Section: Characterization Of Weld Interfacesupporting

confidence: 92%

Low Velocity of Detonation Explosive Welding (LVEW) Process for Metal Joining

Sherpa

Kumar

Upadhyay

et al. 2020

Propellants Explo Pyrotec

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“…Furthermore, amorphous phases were observed by Natasi et al [34] and Gong et al [35], whereas the nano-crystalline phases by Purja Pun et al [36] and Rajagopalan et al [37]. On the other hand, a Cu/stainless steel interface contains solidified melt zones that are exclusively composed of intermetallic phases of different chemical compositions and various morphology of grains, e.g., [16,19]. Moreover, independently on metals composition, radical temperature changes [10,11] can lead to remarkable microstructural transformation in near-the-interface layers of the bonded sheets.…”

Section: Macro-/meso-scale Interfaces Overviewmentioning

confidence: 99%

“…Since the interfacial layers are subjected to severe plastic deformation [14][15][16][17][18] they can easily undergo recovery and recrystallization. On the other hand, the processes of fast heating followed by fast cooling during clad preparation result in the formation of solidified melt zones of different structures, phase composition and mechanical properties [7][8][9][10][11]19,20].…”

Section: Macro-/meso-scale Interfaces Overviewmentioning

confidence: 99%

Structural Properties of Interfacial Layers in Tantalum to Stainless Steel Clad with Copper Interlayer Produced by Explosive Welding

Paul

Chulist

Mania

2020

Metals

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A systematic study of explosively welded tantalum and 304 L stainless steel clad with M1E copper interlayer was carried out to characterize the microstructure and mechanical properties of interfacial layers. Microstructures were examined using transmission and scanning (SEM) electron microscopy, whereas mechanical properties were evaluated using microhardness measurements and a bending test. The macroscale analyses showed that both interfaces between joined sheets were deformed to a wave-shape with solidified melt zones located preferentially at the crest of the wave and in the wave vortexes. The microscopic analyses showed that the solidified melt zones are composed of nano-/micro-crystalline phases of different chemical composition, incorporating elements from the joined sheets. SEM/electron backscattered diffraction (EBSD) measurements revealed the microstructure of layers of parent sheets that undergo severe plastic deformation causing refinement of the initial grains. It has been established that severely deformed areas can undergo recovery and recrystallization already during clad processing. This leads to the formation of new stress-free grains. The microhardness of welded sheets increases significantly as the joining interface is approaching excluding the volumes directly adhering to large melted zones, where a noticeable drop of microhardness, due to recrystallization, is observed. On lateral bending the integrity of the all clad components is conserved.

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“…Images of initial plates before experiment are presented in Figure 2, and due to the mechanical properties of aluminum-1060 (lighter and softer), this metal is chosen as the base plate and copper-T2 is set as the flying plate. To be specific, these two metal plates are designed with dimensions of 150 mm 3 300 mm 3 15 mm (the base plate) and 150 mm 3 300 mm 3 3 mm (the flying plate), respectively.…”

Section: Preparation Of Experimental Materialsmentioning

confidence: 99%

“…Since the explosive welding is normally considered as a solid state process [3][4][5], it works by detonating an explosive coating and further accelerating the flying plate to a quite high velocity towards the base plate. The whole process would eventually cause severe, but localized, plastic flow and lead to a linear or a wavy interface between two plates.…”

Section: Introductionmentioning

confidence: 99%

Application of a New Cleaner Emulsion‐Explosive Formula: Cu/Al Parallel Plates Explosive Welding

Zhou

Shen

et al. 2018

Propellants Explo Pyrotec

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This paper introduces a new cleaner emulsion‐explosive formula and uses it in the copper/aluminum parallel plates explosive welding, with the benefits of decreasing the overall cost of emulsion explosive product and minimizing environmental pollution during use. After the welding experiment, sample's welding quality was firstly evaluated via the X‐ray tomography (XCT), optical microscopy (OM) and scanning electron microscopy (SEM). On the other hand, the energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM) and X‐ray diffraction (XRD) analysis are utilized to identify the kinds of inter‐metallic compounds of samples. Our results reveal that the metal/metal interface obtained using the new emulsion explosive is more regular and wavy, and the inter‐metallic compounds, caused by rapid solidification and further cooling of the dissimilar partners, are confirmed as Al2Cu and AlCu.

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Microstructure and mechanical properties of Ti/Ta/Cu/Ni alloy laminate composite materials produced by explosive welding

Cited by 38 publications

References 32 publications

Low Velocity of Detonation Explosive Welding (LVEW) Process for Metal Joining

Low Velocity of Detonation Explosive Welding (LVEW) Process for Metal Joining

Structural Properties of Interfacial Layers in Tantalum to Stainless Steel Clad with Copper Interlayer Produced by Explosive Welding

Application of a New Cleaner Emulsion‐Explosive Formula: Cu/Al Parallel Plates Explosive Welding

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