Microstructure and mechanical properties of sandwich copper/steel composites produced by explosive welding

Gladkovsky, S. V.; Kuteneva, S. V.; Sergeev, S. N.

doi:10.1016/j.matchar.2019.06.008

Cited by 90 publications

(30 citation statements)

References 28 publications

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“…In turn, the results of microhardness measurement across the section of the explosively welded copper and steel [36] show a change in microhardness from initial values of 90 HV (copper) and 150 HV (steel) to, respectively, 120 and 230 HV after explosion welding, which indicates growth in hardness by 25 and 35%. Similar tests [38] of a layered material built from two cold rolled plates of titanium Ti Gr.2 (the flyer plate) and aluminum A1050 (the base plate) show hardness differences at the level of 33 to 40 HV for aluminum and 131 to 244 HV for initial average hardness values of aluminum and titanium of 34 and 180 HV, respectively.…”

Section: Introductionmentioning

confidence: 94%

“…The distribution of microhardness depends on the welded material, welding parameters, and additional heat and plastic treatments applied after welding. For instance, in work [36], measurement of microhardness was used for assessment of the impact of explosive welding and further plastic treatment (cold rolling) on the properties of the base materials (Cu and steel). In turn, in work [37], measurement of the microhardness made it possible to perform an assessment of the impact of the environment (helium and air) in which steel and titanium explosion welding was performed.…”

Section: Introductionmentioning

confidence: 99%

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Local mechanical properties of explosively welded AA2519-AA1050-Ti6Al4V layered material

Boroński

2020

Weld World

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The study presents the results of tests of local static and cyclic properties of an explosively welded AA2519-AA1050-Ti6Al4V layered material. In order to perform the analysis, tests were carried out with the use of microspecimens collected from 10 layers of AA2519-AA1050-Ti6Al4V material. Additionally, the determined static properties were compared with the results of an analysis based on microhardness measurement. Based on the test results, slight differences in static properties were found for particular layers of the material as well as a distinct softening of the AA2519 layer in relation to the base values. It was also found that the application of microhardness measurement for analysis of static properties can lead to their overestimation. Cyclic properties were described by the Ramberg-Osgood model. As in the case of static properties, the cyclic properties of particular layers of AA2519-AA1050-Ti6Al4V material differ insignificantly. The tests of cyclic properties showed that application for their description the Ramberg-Osgood model, based on parameters determined for whole range of plastic strains, can lead to significant errors in the modeling of a layered material. The cyclic instability of Ti6Al4V and AA2519 alloys has a significant influence on the parameters to be determined for material models of the analyzed material.

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Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Local mechanical properties of explosively welded AA2519-AA1050-Ti6Al4V layered material

Boroński

2020

Weld World

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“…Layered composites, due to highly diverse properties of the component materials used to form the layers, allow achieving materials whose functional qualities are different from those of the base materials. This applies not only to mechanical properties, but also to other properties such as corrosion resistance [2], thermal conductivity [3], or electrical conductivity [4,5]. A literature analysis indicates that there is a significant number of different metals used in explosive welded layered composites, which enables producing different configurations, such as Al/Al [6], Al/Cu [7,8], Al/Mg [9,10], Al/Fe [11,12], Al/steel [13,14], Al/Ni [15], Ti/Mg [16], Ti/Ni [17,18], Ti/Cu [19], and Ti/steel [20,21].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Fracture Process of Explosively Welded AA2519–AA1050–Ti6Al4V Layered Material

et al. 2020

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The study presents an analysis of the cracking process of explosive welded layered material AA2519–AA1050–Ti6Al4V (Al–Ti laminate) at ambient (293 K) and reduced (223 and 77 K) temperatures. Fracture toughness tests were conducted for specimens made of base materials and Al–Ti laminate. As a result of loading, delamination cracking occurred in the bonding layer of specimens made from Al–Ti laminate. To define the crack mechanisms that occur at the tested temperatures, a fracture analysis was made using a scanning electron microscope. Moreover, acoustic emission (AE) signals were recorded while loading. AE signals were segregated to link their groups with respective cracking process mechanisms. Numerical models of the tested specimens were developed, taking into account the complexity of the laminate structure and the ambiguity of the cracking process. A load simulation using the finite element method FEM allowed calculating stress distributions in the local area in the crack tip of the Al–Ti laminate specimens, which enabled the explanation of significant material cracking process development aspects. Results analysis showed an influence of interlayer delamination crack growth on the process of the Al–Ti laminate specimen cracking and the level of KQ characteristics at different temperatures.

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“…Arab et al 28 studied the weldability of the aluminum and AlCoCrFeNi high entropy alloys prepared by explosive welding. Gladkovsky et al 29 investigated the effect of the cold rolling process on the appearance of the bonding interface of the copper/steel/copper sandwich composites which were produced by the explosive welding process. They illustrated that by utilizing the cold rolling process, the wavy interface of the layers, which is caused by the explosive welding, changed to a waveless profile.…”

Section: Introductionmentioning

confidence: 99%

Investigation of forming limit diagram and mechanical properties of the bimetallic Al/Cu composite sheet at different temperatures which fabricated by explosive welding

Alaie

Hashemi

Kazemi

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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This research aims to investigate the mechanical properties, fractography and formability of Al/Cu two-layer composite sheets at three temperatures (23 °C, 120 °C and 220 °C). The bimetal sheet was fabricated by the explosive welding method. The anisotropy of the Al/Cu bimetallic composite sheet was investigated. The result showed significant anisotropy in the Al/Cu composite sheet due to the explosive welding process. The Vickers hardness measurements demonstrated that the hardness in both aluminum and copper sides increased because of the work hardening phenomenon. The fractography of the surfaces was investigated by the scanning electron microscope after tensile tests to study the effect of temperature and the direction, which the samples prepared for the tensile test with respect to the explosion direction, on the mechanism of the fracture. For the tensile test, the samples were prepared parallel to the detonation direction [Formula: see text] and two other directions with respect to the explosion direction [Formula: see text] from the AA1100/Cu10100 bimetallic sheet. Finally, the forming limit diagram of the Al/Cu composite sheet was determined at the three mentioned temperatures. The results demonstrated that temperature and the direction had a considerable effect on the mechanism of the rupture and formability. As the temperature of the specimen rises, the regions that brittle fracture happened became less and the formability improved significantly. The formability of the Al/Cu composite sheet enhanced about 34.8% when the temperature increased from 23 °C to 120 °C and 67.5% when it increased from 120 °C to 220 °C.

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Microstructure and mechanical properties of sandwich copper/steel composites produced by explosive welding

Cited by 90 publications

References 28 publications

Local mechanical properties of explosively welded AA2519-AA1050-Ti6Al4V layered material

Local mechanical properties of explosively welded AA2519-AA1050-Ti6Al4V layered material

Investigation of the Fracture Process of Explosively Welded AA2519–AA1050–Ti6Al4V Layered Material

Investigation of forming limit diagram and mechanical properties of the bimetallic Al/Cu composite sheet at different temperatures which fabricated by explosive welding

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