Multilayer composite al99.99/almg3 sheets prepared by accumulative roll bonding

Slámová, Margarita; Sláma, Peter; Homola, Petr; Uhlíř, Jaromír; Cieslar, Miroslav

doi:10.3139/146.110106

Cited by 14 publications

(10 citation statements)

References 4 publications

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“…This was already observed for many other ARB-processed laminated metal composites (cf. [9,22]). The increase in strength between ARB cycle 4 and 8 is mainly due to the increasing strength of the AA5005 layer.…”

Section: Mechanical Properties Under Monotonic Loadsmentioning

confidence: 99%

“…Many studies have been carried out on this area with different materials: Al/Cu [6], Al/Mg [7], Fe/Cu [8], and some others. Due to the excellent results on ARB-processed aluminum mono-material sheets also many Al/Al LMCs have been fabricated (e.g., [9,10]). For many material combinations, the composites produced by ARB are characterized by the combination of the positive aspects of different UFG materials, which are already known for exceptionally mechanical properties such as high strength combined with a satisfying ductility [9,10].…”

Section: Introductionmentioning

confidence: 99%

“…Due to the excellent results on ARB-processed aluminum mono-material sheets also many Al/Al LMCs have been fabricated (e.g., [9,10]). For many material combinations, the composites produced by ARB are characterized by the combination of the positive aspects of different UFG materials, which are already known for exceptionally mechanical properties such as high strength combined with a satisfying ductility [9,10]. One difficulty of roll-bonding two dissimilar materials is necking and finally rupturing of the harder layer with increasing ARB cycles caused by the difference in plastic flow behavior.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Mechanical Properties of Accumulative Roll-Bonded AA1050A/AA5005 Laminated Metal Composites

Kümmel

Kreuz

Hausöl

et al. 2016

Metals

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Laminated metal composites (LMCs) with alternating layers of commercial pure aluminum AA1050A and aluminum alloy AA5005 were produced by accumulative roll-bonding (ARB). In order to vary the layer thickness and the number of layer interfaces, different numbers of ARB cycles (4, 8, 10, 12, 14 and 16) were performed. The microstructure and mechanical properties were characterized in detail. Up to 8 ARB cycles, the ultrafine-grained (UFG) microstructure of the layers in the LMC evolves almost equally to those in AA1050A and AA5005 mono-material sheets. However, the grain size in the composites tends to have smaller values. Nevertheless, the local mechanical properties of the individual layers in the LMCs are very similar to those of the mono-material sheets, and the macroscopic static mechanical properties of the LMCs can be calculated as the mean value of the mono-material sheets applying a linear rule of mixture. In contrast, for more than 12 ARB cycles, a homogenous microstructure was obtained where the individual layers within the composite cannot be visually separated any longer; thus, the hardness is at one constant and a high level across the whole sheet thickness. This results also in a significant higher strength in tensile testing. It was revealed that, with decreasing layer thickness, the layer interfaces become more and more dominating.

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Section: Mechanical Properties Under Monotonic Loadsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microstructure and Mechanical Properties of Accumulative Roll-Bonded AA1050A/AA5005 Laminated Metal Composites

Kümmel

Kreuz

Hausöl

et al. 2016

Metals

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“…Nevertheless, simulations clearly show that changes in Mg distribution can increase the mobility of grain boundaries near the interface on the AlMg3 side at higher annealing temperatures and thus enhance the probability of broadening of the Al layer. 4. Summary Evolution of microstructure in Al99.99/AlMg3 laminates prepared by ARB was studied in the course of isochronal annealing.…”

Section: Methodsmentioning

confidence: 99%

“…Finally, multilayered composites containing up to 64 alternating layers of Al and AlMg3 were prepared [4]. Ductility is ensured in this type of the material by partially recrystallized coarser grains in Al layers while ne-grained and heavily deformed microstructure of AlMg3 layers enhances the strength of the composite.…”

Section: Introductionmentioning

confidence: 99%

Recrystallization in Multilayer Al99.99/AlMg3 Laminates Prepared by Accumulative Roll-Bonding

et al. 2015

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Composite multilayer sheets from Al/AlMg3 with 32 alternating layers of Al and AlMg3 were prepared by accumulative roll-bonding and their thermal stability was studied. Recrystallized 2 mm thick sheets of a commercial twin-roll cast AlMg3 alloy and high purity Al99.99 served as input materials. Electrical resistivity measurements were used for the integral monitoring of solute atoms distribution during annealing. Light optical microscopy was employed for the direct grain-size determination and recrystallization description. Post-mortem electron microscopy observations were performed on as-prepared and annealed specimens and they were combined with in situ heating electron microscopy in order to explain the observed annealing eects. A broadening of Al layers during annealing was observed and related to diusion of magnesium.

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High Lightweight Potential of Ultrafine‐Grained Aluminum/Steel Laminated Metal Composites Produced by Accumulative Roll Bonding

et al. 2018

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The focus of this paper is the designing of ultrafine-grained aluminum/steel laminated metal composites for innovative lightweight materials concepts used for cyclic loading. These ultrafine-grained composites are produced by the accumulative roll bonding process. Three different aluminum/steel composites are studied, where the position of the steel layers is varied, to investigate the influence of the layer architecture. The mechanical properties are measured in monotonic and cyclic three-point bending tests. The influence of the meso-and microstructure are intensively studied by scanning electron microscope observations. Furthermore, the internal stresses during elastic straining are calculated by a finite element simulation. In the composites, both monotonic and cyclic mechanical properties are strongly increased and are clearly higher as expected by a linear rule of mixtures of the constituent materials. This increase is particularly high for the fatigue properties resulting in a strongly enhanced specific fatigue limit of the composites.

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Multilayer composite al99.99/almg3 sheets prepared by accumulative roll bonding

Cited by 14 publications

References 4 publications

Microstructure and Mechanical Properties of Accumulative Roll-Bonded AA1050A/AA5005 Laminated Metal Composites

Microstructure and Mechanical Properties of Accumulative Roll-Bonded AA1050A/AA5005 Laminated Metal Composites

Recrystallization in Multilayer Al99.99/AlMg3 Laminates Prepared by Accumulative Roll-Bonding

High Lightweight Potential of Ultrafine‐Grained Aluminum/Steel Laminated Metal Composites Produced by Accumulative Roll Bonding

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