Macrostructure evolution and mechanical properties of accumulative roll bonded Al/Cu/Sn multilayer composite

Mahdavian, M.; Khatami-Hamedani, H.; Abedi, H.R.

doi:10.1016/j.jallcom.2017.01.300

Cited by 49 publications

(27 citation statements)

References 26 publications

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“…Usually, ARB of Ti and Al at ambient temperature results in well bonded LMCs with both grain refinement and strength increase, for example . However, necking and fracture of Ti layers is observed at low cycle numbers, which firstly lowers the strength and secondly leads to increasingly inhomogeneous deformation, for example . During further ARB, shear bands through the entire sheet width destroy the layered structure and facilitate transverse cracking, for example .…”

Section: Selected Arb Systemsmentioning

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: Selected Arb Systemsmentioning

confidence: 99%

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

et al. 2018

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“…The coexistence of low and high angle grain boundaries indicates that the subgrains tend to rotate and form grain boundaries with high misorientation angle during straining. It is clear that the fine equiaxed ferrite grains, with the average grain size of about 5 µm, could be formed by a CDRX mechanism …”

Section: Resultsmentioning

confidence: 99%

Toward Unraveling the High Temperature Microstructure Processing Properties Relationship in a Ni‐Free High Nitrogen Bearing Duplex Stainless Steel

Khatami-Hamedani

Zarei-Hanzaki

Ghambari

et al. 2018

steel research int.

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The present study deals with thermomechanical processing behavior of a Nifree high nitrogen bearing duplex stainless steel. This is performed through compressing the material over a wide range of temperature (700-1000 C) under the strain rates of 0.001-0.1 s À1 . The microstructural observations show that continuous and discontinuous dynamic recrystallization are taken place simultaneously in austenite at 900 and 1000 C by generating subgrains and bulging along the prior austenite grain boundaries, respectively. Electron backscattered diffraction analysis also reveals that the occurrence of continuous dynamic recrystallization is the governing restoration phenomenon in ferrite over the studied conditions. At last, to consolidate the experimental results, a strain-compensated constitutive model is developed to predict the flow behavior of N-bearing duplex steel.

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“…Uneven deformation occurred locally in layers to cause a change in stress state when the accumulative strain reached a certain level due to the different plastic deformation of dissimilar metals. Generally speaking, the non-uniform interaction between the different layers led to change the heterogeneous structure of the interface, which results in the necking phenomenon and breakdown in the hard layers [20]. Figure 4a,b, respectively, illustrate the microstructure of the Ni layer after the third and fifth passes.…”

Section: Nbmentioning

confidence: 99%

Microstructure and Mechanical Properties of the Ni/Ti/Nb Multilayer Composite Manufactured by Accumulative Pack-Roll Bonding

Xue-ping

Liang

2020

Metals

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In this work, accumulative pack-roll bonding successfully manufactured the Ni/Ti/Nb multilayer composite. The microstructure evolution and mechanical properties of the composite during the accumulative roll bonding (ARB) process were investigated by scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), transmission electron microscopy (TEM), micro-hardness test, and tensile tests. The results showed that the deformation of each layer was relatively uniform in the initial stage of the ARB process. After the fourth pass, the Ni/Ti interface was still relatively straight, while the Ti/Nb interface was unevenly deformed. After the fourth pass, the microstructure of the Ni layer was equiaxed grains with a decreased grain size of 200 nm, and finer equiaxed grains were observed at the interface. No dynamic recrystallization occurred in the Ti and Nb layers. The laminar structure of the Nb layer was observed, and the grains were oriented parallel to the rolling direction. Moreover, the tensile strength and micro-hardness significantly increased as the number of ARB increased. After five passes of the ARB process, the tensile strength of the composite reached 792.3 MPa, and the micro-hardness of Ni, Ti, and Nb were increased to 270.2, 307.4, and 243.4 HV, respectively.

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Macrostructure evolution and mechanical properties of accumulative roll bonded Al/Cu/Sn multilayer composite

Cited by 49 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

Toward Unraveling the High Temperature Microstructure Processing Properties Relationship in a Ni‐Free High Nitrogen Bearing Duplex Stainless Steel

Microstructure and Mechanical Properties of the Ni/Ti/Nb Multilayer Composite Manufactured by Accumulative Pack-Roll Bonding

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