Role of shear in interface formation of aluminium-steel multilayered composite sheets

Filho, Anibal de Andrade Mendes; Timokhina, Ilana; Molotnikov, Andrey; Hodgson, Peter; Lapovok, Rimma

doi:10.1016/j.msea.2017.08.025

Cited by 38 publications

(7 citation statements)

References 26 publications

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“…When high specific strength in combination with sufficient formability and ductility is the foremost requirement, Al is often combined with high‐strength partners such as steel, for example, Mg, for example, Ti, for example, as well as both Mg and Ti . Furthermore, Ti is paired with Fe, Cu, for example, Nb, Mg, and Zr, while LMCs of Ti with Ni are primarily investigated for the shape memory effect.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Texture, and Mechanical Properties of Laminar Metal Composites Produced by Accumulative Roll Bonding

et al. 2018

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The paper aims to summarize the research on Laminar Metal Composites produced by Accumulative Roll Bonding. After some notes on the general subject, frequent material combinations and the issue of bonding are addressed. Then, the evolution of microstructure, texture, and mechanical properties typically observed in such materials is briefly summarized. Furthermore, the crucial aspect of layer continuity is discussed. In the main part, detailed experimental insight is provided for three representatives of different structural developments, namely Al2N/Al5N, Cu/Nb, and Ti/Al. The chosen systems represent different levels of component dissimilarity, as Al2N/Al5N is a combination of the same face centered cubic metal with varying purity while Cu/Nb and Ti/Al are combinations of face centered cubic with both body centered cubic and hexagonal close packed metals, respectively. As the layer thicknesses span different ranges, the composites also illustrate both the opportunities and experimental challenges of ARB Laminar Metal Composites.bonding (in the following, those processes will be referred to "ARB"), often supplemented by annealing and rolling steps. Naturally, a high percentage of the scientific attention regarding LMCs is bestowed on Al alloys, for example, [7,25,[43][44][45][46][47][48][49][50] whose assets are excellent formability and corrosion resistance while being low in both weight and price.Al alloys are frequently combined in order to improve specific properties, for example, [51][52][53][54][55] A strong but corrosion susceptible Al alloy of series 2xxx, for example, benefits from the combination with a less strong but corrosion resistant alloy of series 6xxx. [50] Likewise, in LMCs of series 5xxx and 6xxx, both surface quality and weldability are improved due to the reduction of the PLC-effect [53] and hot cracking, [55] respectively.By combining Al with both Fe [56][57][58] or Cu, [45,59] the magnetic properties of the former and the electrical properties of the latter can be used to produce LMCs with potential in microelectronics and in electrical power industry, [60] respectively. Other components in LMCs with Cu are Ag, [61] Zn, [62] both Zn and Al, [63] and both Al and Ni. [64] Nb receives major scientific attention due to its superconducting properties, which work especially well in a finelayered structure with Cu or Al, [65] which are chosen for their low solubility in Nb and the absence of mutual intermetallics. In contrast, other LMCs are produced especially for intermetallic transition, for instance Al/Fe, [57,58,66] Al/Mg, [43,44] Al/Ti, [67][68][69][70][71] Al/Ni, [72,73] Ti/Nb, [74] or Ti/Al/Nb. [74] When high specific strength in combination with sufficient formability and ductility is the foremost requirement, Al is often combined with high-strength partners such as steel, for example, [66,75] Mg, for example, [46,76,49] Ti, for example, [67][68][69]74,[77][78][79][80][81][82][83][84][85][86] as well as both Mg and Ti. [87] Furthermore, Ti is paired with Fe, [88,89] Cu, for example, [90,...

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Section: Introductionmentioning

confidence: 99%

Microstructure, Texture, and Mechanical Properties of Laminar Metal Composites Produced by Accumulative Roll Bonding

et al. 2018

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“…Interface formation is typically governed by three mechanisms, namely, intermixing, inter-diffusion and phase formation [14,15]. Room temperature deformation leads to intermixing when the surface asperities are crushed during contact under high hydrostatic pressure and severe shear deformation [14], mixing the constituents in a swirl flow ( Figure 3).…”

Section: Interface Formation During Room Temperature Deformationmentioning

confidence: 99%

Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium Conductors

Lapovok

Dubrovsky

Kosinova

et al. 2019

Metals

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Aluminium rods with different copper sheath thicknesses were processed by severe plastic deformation at room temperature and then annealed, to join the constituent metals and produce a nanocrystalline microstructure. A study of the effects of the deformation parameters, copper cladding thickness and annealing temperature on the electrical conductivity and hardness of the conductors is reported. It is shown that an interface forms between constituents because of intermixing in the course of severe shear deformation under high hydrostatic pressure and diffusion during the subsequent annealing. The effective conductivity of the aluminium copper-clad conductor dropped after deformation, but was recovered during annealing, especially during short annealing at 200 • C, to a level exceeding the theoretically predicted one. In addition, the annealing resulted in increased hardness at the interface and copper sheath.

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“…Composites are intriguing primarily given by the possibility to combine materials with more or less contradictory properties in a single product. Various metallic systems, such as Cu/Ag [10], carbon nanotubes (CNT/Al) [10], Ti/steel [11], Al/steel [12], Mg/Al/steel [13], steel/Al/Cu [14], or Al/Cu [15,16] have been used to prepare UFG composites.…”

Section: Introductionmentioning

confidence: 99%

Development of structure and properties in bimetallic Al/Cu sandwich composite during cumulative severe plastic deformation

Kocich

Kunčická

2021

Jnl of Sandwich Structures & Materials

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Development of modern materials is non-negligibly connected with enhancement of their mechanical and utility properties, which can advantageously be performed via optimized deformation processing. The study presents preparation of Al/Cu sandwich composite, reinforced with Cuwires, by the twist channel angular pressing (TCAP) method. Extrusion of the sandwich composite via single and double pass TCAP was simulated using the finite element method, and performed experimentally. The predicted deformation behaviour was verified by 3 D Micro-CT scanning, as well as detailed microstructure observations. The results showed that already the single TCAP resulted in substantial deformation strengthening of both the component metals, and the effective strain imposed within the Alsheath reached the value of 5 after the second pass. The Alsheath also featured homogeneous distribution of the lowest absolute values of residual stress, and the smallest average grain size of 1.66 µm. The Cu grains within both the composites were also significantly refined, to almost 3 µm after the second pass. Nevertheless, the observed parameters featured slight variations across the composites’ cross-sections, which can be attributed to the plastic flow behaviour phenomena. The severe imposed shear strain also resulted in increase in microhardness and imparted changes in the thermal conductivity.

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Role of shear in interface formation of aluminium-steel multilayered composite sheets

Cited by 38 publications

References 26 publications

Microstructure, Texture, and Mechanical Properties of Laminar Metal Composites Produced by Accumulative Roll Bonding

Microstructure, Texture, and Mechanical Properties of Laminar Metal Composites Produced by Accumulative Roll Bonding

Effect of Severe Plastic Deformation on the Conductivity and Strength of Copper-Clad Aluminium Conductors

Development of structure and properties in bimetallic Al/Cu sandwich composite during cumulative severe plastic deformation

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