Tailoring Materials Properties by Accumulative Roll Bonding

Hausöl, Tina; Maier, Verena; Schmidt, Christian W.; Winkler, Michael; Höppel, Heinz Werner

doi:10.1002/adem.201000044

Cited by 52 publications

(36 citation statements)

References 43 publications

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“…Besides the conventional route for producing UFG sheets by ARB processing, recent research on accumulative roll bonding [ 20 ] is focusing on the processing of multicomponent materials with the goal to produce tailored materials with properties adjusted to special needs. This development is driven by the very high potential of the accumulative roll bonding process to manufacture reinforced or graded structures.…”

Section: Processing Of Tailored Accumulative Roll Bonded Sheetsmentioning

confidence: 99%

“…The high number of individual layers within an ARB processed sheet offers many possibilities for reinforcing the layered material stack and for producing graded material sheets with varying properties from the inside to the outside or for producing laminates consisting of alternating layers of different materials. Besides the conventional route the ARB process offers manifold possibilities to introduce reinforcing phases in form of particles, fi bers or foils or to join different ARB materials and therewith produce tailored and graded nanostructured materials (see tailoring routes in Figure 1 , [ 20 ] ). Intelligent layer architecture can be achieved by the combination of different ARB materials within several cycles.…”

Section: Processing Of Tailored Accumulative Roll Bonded Sheetsmentioning

confidence: 99%

“…(a) Schematic of the accumulative roll bonding process by the conventional route and for the different tailoring routes for the production of multicomponent materials. [ 20 ] (b) Stress-strain curves of ARB processed Al compared to conventionally cold-rolled Al as obtained from tensional tests at different strain rates. [ 8 ] by local variation of the content of reinforcing phase over the sheet, which is especially possible with controlled distribution of particles.…”

Section: Processing Of Tailored Accumulative Roll Bonded Sheetsmentioning

confidence: 99%

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Tailoring Nanostructured, Graded, and Particle‐Reinforced Al Laminates by Accumulative Roll Bonding

Göken

2011

Advanced Materials

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Accumulative roll bonding (ARB) is a very attractive process for processing large sheets to achieve ultrafine-grained microstructure and high strength. Commercial purity Al and many Al alloys from the 5xxx and the precipitation strengthened 6xxx alloy series have been successfully processed by the ARB process into an ultrafine-grained state and superior ductility have been achieved for some materials like technical purity Al. It has also been shown that the ARB process can be successfully used to produce multi-component materials with tailored properties by reinforcement or grading, respectively. This allows optimizing the properties based on two or more materials/alloys. For example, to achieve high corrosion resistance and good visual surface properties it is interesting to produce a composite of two different Al alloys, where for example a high strength alloy of the 5xxx series is used as the core material and a 6xxx series alloy as the clad material. It has been shown that such a composite achieves more or less the same strength as the core material although 50% of the composite consists of the significant softer clad alloy. Furthermore, it has been found, that the serrated yielding which typically appears in 5xxx series alloys and limits applications as outer skin materials completely disappears. Moreover, the ARB process allows many other attractive ways to design new composites and graded material structures with unique properties by the introduction of particles, fibres and sheets. Strengthening with nanoparticles for example is a very attractive way to improve the properties and accelerate the grain refining used in the severe plastic deformation process. With an addition of only 0.1 vol.-% Al2O3 nanoparticles a significantly accelerated grain refinement has been found which reduces the number of ARB passes necessary to achieve the maximum in strength. The paper provides a short review on recent developments in the field of ARB processing for producing multicomponent ultrafine-grained sheet materials with tailored properties.

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Section: Processing Of Tailored Accumulative Roll Bonded Sheetsmentioning

confidence: 99%

Section: Processing Of Tailored Accumulative Roll Bonded Sheetsmentioning

confidence: 99%

Section: Processing Of Tailored Accumulative Roll Bonded Sheetsmentioning

confidence: 99%

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Tailoring Nanostructured, Graded, and Particle‐Reinforced Al Laminates by Accumulative Roll Bonding

Göken

2011

Advanced Materials

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“…Therefore, most of the materials that have been processed by SPD-methods are single component materials. The ARB process is an exception that allows homogeneous co-deformation of different phases of one material or even of different materials up to a certain extent [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

The Strengthening Effect of Phase Boundaries in a Severely Plastically Deformed Ti-Al Composite Wire

Marr

Freudenberger

Maier

et al. 2014

Metals

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An accumulative swaging and bundling technique is used to prepare composite wires made of Ti and an Al alloy. These wires show reasonable higher yield stresses than expected from the pure material flow curves. The additional strengthening in the composite is analyzed using nanoindentation measurements, tensile testings and investigations of the microstructure. In addition, these properties are analyzed in relation to the fracture surface of the mechanically tested wires. Additional strengthening due to the presence of phase boundaries could be verified. Indications for residual stresses are found that cause a global hardness gradient from the center to the wire rim. Finally, the yield stress of the wires are calculated based on local hardness measurements.

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“…Besides the formation of an ultrafine-grained microstructure, this process offers a OPEN ACCESS high potential for tailoring properties of ultrafine-grained materials [4,5]. In this respect particle reinforcement is of special interest because it allows a high freedom in designing different spatial distributions of reinforcements [6].…”

Section: Introductionmentioning

confidence: 99%

Particle Based Alloying by Accumulative Roll Bonding in the System Al-Cu

Schmidt

Knödler

Höppel

et al. 2011

Metals

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Abstract:The formation of alloys by particle reinforcement during accumulative roll bonding (ARB), and subsequent annealing, is introduced on the basis of the binary alloy system Al-Cu, where strength and electrical conductivity are examined in different microstructural states. An ultimate tensile strength (UTS) of 430 MPa for Al with 1.4 vol.% Cu was reached after three ARB cycles, which almost equals UTS of the commercially available Al-Cu alloy AA2017A with a similar copper content. Regarding electrical conductivity, the UFG structure had no significant influence. Alloying of aluminum with copper leads to a linear decrease in conductivity of 0.78 µΩ·cm/at.% following the Nordheim rule. On the copper-rich side, alloying with aluminum leads to a slight strengthening, but drastically reduces conductivity. A linear decrease of electrical conductivity of 1.19 µΩ·cm/at.% was obtained.

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Tailoring Materials Properties by Accumulative Roll Bonding

Cited by 52 publications

References 43 publications

Tailoring Nanostructured, Graded, and Particle‐Reinforced Al Laminates by Accumulative Roll Bonding

Tailoring Nanostructured, Graded, and Particle‐Reinforced Al Laminates by Accumulative Roll Bonding

The Strengthening Effect of Phase Boundaries in a Severely Plastically Deformed Ti-Al Composite Wire

Particle Based Alloying by Accumulative Roll Bonding in the System Al-Cu

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