Influence of processing parameters on the bond toughness of roll-bonded aluminium strip

Quadir, Zakaria; Wolz, André; Hoffman, Mark; Ferry, Michael

doi:10.1016/j.scriptamat.2008.01.022

Cited by 65 publications

(39 citation statements)

References 17 publications

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“…The more refined microstructure at the interfaces is considered to be able to improve the bond strength by increasing the hardness values close to the interfaces [15,27]. The current results are consistent with this statement as higher values are observed close to the interfacial areas (Fig.…”

Section: Bond Interfacesupporting

confidence: 88%

“…4 that there are basically two types of interfacial microstructures: the ones with more refined microstructure at the interfaces and the ones without. The more refined microstructure is caused by the oxides and contamination at the surfaces where the interfaces had been introduced in the previous ARB cycles [11,15,26]. The similar interfacial microstructure was been observed in the authors' previous work and was concluded as two types: type I with direct contact of fresh metals and type II with oxide film layers in between of original metal surface [26].…”

Section: Bond Interfacesupporting

confidence: 72%

“…4 (d)). The bonding quality is affected by many parameters, such as rolling temperature, amount of deformation and post-rolling annealing [15,28]. For the AA1050 after different numbers of ARB cycles, the amount of deformation increases and the bonding quality improves.…”

Section: Bond Interfacementioning

confidence: 99%

“…Li et al [14] studied the texture evolution during ARB of AA1070 and strong texture gradients were observed. Besides, Quadir et al [15] and Jamaati et al [16,17] have investigated the influence of rolling reduction varying from 20% to 90% on the bond strength during ARB. It was found that the bond strength increased significantly for reductions greater than 47%.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of ultrafine grained AA1050 fabricated by accumulative roll bonding

Lü

et al. 2014

Materials Science and Engineering: A

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Accumulative roll bonding (ARB) is an effective method to produce ultrafine-grained (UFG) sheet materials with high strength. In this work, fully annealed AA1050 sheet with an initial thickness of 1.5. mm was processed by ARB up to five cycles. The microstructure was examined by optical microscopy (OM) and transmission electron microscopy (TEM). The results revealed that ARB is a promising process for fabricating ultrafine grained structures in aluminium sheets and the average grain size after 5-cycle ARB reached approximately 300. nm. Meanwhile, a remarkable enhancement in the strength was achieved and the value was about three times the strength of starting material. The microstructure at the bond interface introduced during ARB was investigated and its influence was discussed in detail. In addition, the microstructure and mechanical properties after ARB were compared with that after deformation by equal channel angular pressing (ECAP) up to the same strain. It has been found that ARB is more efficient in grain refinement and strengthening, which can be attributed to the different deformation modes of the two techniques. Accumulative roll bonding (ARB) is an effective method to produce ultrafine-grained (UFG) sheet materials with high strength. In this work, fully annealed AA1050 sheet with an initial thickness of 1.5 mm was processed by ARB up to five cycles. The microstructure was examined by optical microscopy (OM) and transmission electron microscopy (TEM). The results revealed that ARB is a promising process for fabricating ultrafine grained structures in aluminium sheets and the average grain size after 5-cycle ARB reached approximately 300 nm. Meanwhile, a remarkable enhancement in the strength was achieved and the value was about three times the strength of starting material. The microstructure at the bond interface introduced during ARB was investigated and its influence was discussed in detail. In addition, the microstructure and mechanical properties after ARB were compared with that after deformation by equal channel angular pressing (ECAP) up to the same strain. It has been found that ARB is more efficient in grain refinement and strengthening, which can be attributed to the different deformation modes of the two techniques.

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Section: Bond Interfacesupporting

confidence: 88%

Section: Bond Interfacesupporting

confidence: 72%

Section: Bond Interfacementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of ultrafine grained AA1050 fabricated by accumulative roll bonding

Lü

et al. 2014

Materials Science and Engineering: A

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show abstract

“…[7] A metallurgical bond between the alloys then develops at the interface during the rolling process. Furthermore, the bond quality is influenced by a number of interdependent parameters such as temperature, pressure (determined by the degree of reduction), contact time (roll speed), [8] and the mechanical behavior of the constituent materials to be bonded at the processing temperature.…”

Section: Introductionmentioning

confidence: 99%

Influence of Constituent Materials on the Impact Toughness and Fracture Mechanisms of Hot-Roll-Bonded Aluminum Multilayer Laminates

Cepeda-Jiménez¹,

Hidalgo²,

Pozuelo

et al. 2009

Metall Mater Trans A

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Two aluminum multilayer laminates have been processed by hot roll bonding following similar processing paths. The first one is constituted by alternated Al 2024 and Al 1050 layers (ALH19) and the second one by alternated Al 7075 and Al 1050 layers (ADH19). The influence of the constituent materials in the multilayer laminates both during the processing at high temperature and during the subsequent mechanical characterization has been analyzed. The mechanical behavior of the as-received materials at the processing conditions has been characterized by hot torsion. Multilayer laminates have been tested at room temperature under impact Charpy tests, three-point bend tests, and shear tests on the interfaces. The relative toughness increase compared to the constituent materials was much higher for the ADH19 laminate based on the highstrength Al 7075 alloy than for the ALH19 laminate. This is attributed to the different fracture mechanism.

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Study on Mechanical Properties of 2024 Al Sheet Treated by SMAT and Hot/Cold Rolling

Cheung¹,

Shi²,

J³

2012

Light Metals 2012

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Influence of processing parameters on the bond toughness of roll-bonded aluminium strip

Cited by 65 publications

References 17 publications

Investigation of ultrafine grained AA1050 fabricated by accumulative roll bonding

Investigation of ultrafine grained AA1050 fabricated by accumulative roll bonding

Influence of Constituent Materials on the Impact Toughness and Fracture Mechanisms of Hot-Roll-Bonded Aluminum Multilayer Laminates

Study on Mechanical Properties of 2024 Al Sheet Treated by SMAT and Hot/Cold Rolling

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