Investigation on microstructure and mechanical properties of Al–Zn composite during accumulative roll bonding (ARB) process

Dehsorkhi, Reza Nasiri; Qods, Fathallah; Tajally, Mohammad

doi:10.1016/j.msea.2011.09.040

Cited by 126 publications

(62 citation statements)

References 26 publications

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“…Moreover, some lenticular nodules as a result of fragmentation and necking of Ti are produced in the microstructure, which is the most prominent feature in the ARB process. The occurrence of necking and discontinuity of the hard metal with relatively large strength and work hardening ability has also been reported for many other material systems [28][29][30][31][32] , due to the formation of shear bands (shown by dashed lines) across the different metal layers during deformation. The thickness distribution of Ti layers along RD is inhomogeneous, whereas the thickness reduction of Cu layers is more homogeneous.…”

Section: Assessment Of Lamellar Structuressupporting

confidence: 54%

“…1(c) and (d), macroscopic shear bands that cut through several Ti layers can be clearly identied. The substantial necking in the Ti layers causes the Cu layers to shear approximately at an angle of 45 to RD, which has also been observed in Al/Zn composites fabricated by ARB 28) . During the ARB processing, the soft Cu layers are stretched more severely along RD than the hard Ti layers.…”

Section: Assessment Of Lamellar Structuresmentioning

confidence: 69%

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Microstructure and Mechanical Properties of Multilayered Cu/Ti Composites Fabricated by Accumulative Roll Bonding

et al. 2017

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Multilayered composites composed of pure copper and titanium (Cu/Ti) have been fabricated by accumulative roll bonding (ARB). The macroscopic lamellar structures, mechanical properties and microstructures of the composites are investigated. The results show that the Cu and Ti layers are bonded well during the ARB processing. With the increasing number of ARB cycles, Ti layers start to neck, fracture and even segregate within the Cu matrix, which is attributed to the activation of shear bands that cut through the multiple metal layers. At larger ARB cycles, the distribution of small fragmentations of Ti inside the Cu matrix is more homogeneous, which is attributed to the fact that the outer surfaces of the previously processed composite are placed in the interior of the subsequent ARB stack. Tensile testing at room temperature shows that the yield strength and the ultimate strength of the composites increased mildly with the increasing ARB cycles, while the uniform elongation of the composites is retained. Microhardness tests reveal that the increase of strength in the composites during ARB mainly results from the reinforcement of the Ti layers. The mechanical behaviors of the composites can be attributed to the effect of the mixed microstructures in the both constituent metals.

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Section: Assessment Of Lamellar Structuressupporting

confidence: 54%

Section: Assessment Of Lamellar Structuresmentioning

confidence: 69%

Microstructure and Mechanical Properties of Multilayered Cu/Ti Composites Fabricated by Accumulative Roll Bonding

et al. 2017

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“…[7][8][9] Realizing these outstanding material properties in structural applications requires methods of fabricating nanomaterials in the bulk form. Over the past few decades, severe plastic deformation (SPD) techniques, such as wire drawing, [10,11] high-pressure torsion (HPT), [12][13][14][15] equal channel angular pressing (ECAP), [16,17] and accumulative roll bonding (ARB), [18][19][20][21][22][23] have been employed to successfully make nanomaterials and nanolayered materials. The last two processes, ECAP and ARB, can potentially produce nanomaterials in sheets and rods in both sizes and quantities suitable for structural applications.…”

mentioning

confidence: 99%

“…[17,22,[27][28][29][30] Many technically relevant metals have a hexagonal close packed (hcp) structure and, to date, making bulk nano-hcp metals has been a challenge with SPD techniques. [19,20,23,31,32] In this work, we develop a method using ARB to produce nanolayered Zr-Nb composites with layer thicknesses h of ∼90 nm.…”

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confidence: 99%

The Suppression of Instabilities via Biphase Interfaces During Bulk Fabrication of Nanograined Zr

Carpenter

Nizolek

McCabe

et al. 2014

Materials Research Letters

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“…They are employed in various fields such as the aerospace, automotive, vessel, and electrical industries [1][2][3]. Among the composite material technologies, Accumulative Roll Bonding (ARB) is an important technique used to produce laminates because the rolling pressure can create a mechanical bond between the metal such as St/Br [4], Cu/Fe [5], Cu/Ag [6], Al/Zn [7], Al/Ni [8], Al/Fe [9], Al/Mn [10], etc. In other studies, for aluminum alloys, two grades of these alloys were also used as starting materials such as AA1050/AA5083 [11].…”

Section: Introductionmentioning

confidence: 99%

Roll Bonding Properties of Al/Cu Bimetallic Laminates Fabricated by the Roll Bonding Technique

2017

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Roll bonding (RB) of bimetal laminates is a solid phase method of bonding and has been widely used in the manufacturing of layered strips. This process is widely used for brazing sheet for automotive, aerospace, vessel, and electrical industries. In this study, 1-mm bimetallic aluminum 1050 and pure copper (Al/Cu) laminates were produced using the roll bonding (RB) process. The RB process was carried out with thickness reduction ratios of 10%, 20%, and 30%, separately. Particular attention was focused on the bonding of the interface between Al and Cu layers. The optimization of thickness reduction ratios was obtained for the improvement of the bond strength of bimetallic laminates during the RB process. Also, the RB method was simulated using finite element simulation in ABAQUS software. Finite Element (FE) simulation was used to model the deformation of bimetallic laminates for various thickness reduction ratios, rolling temperatures, and tensile stresses. Particular attention was focused on the rolling pressure of Al and Cu layers in the simulation. The results show that the stress distribution in the bimetal Al/Cu laminates is an asymmetrical distribution. Moreover, the bonding strength of samples was obtained using the peeling test. Also, the fracture surface of roll bonded samples around the interface of laminates after the tensile test was studied to investigate the bonding quality by scanning electron microscopy (SEM).

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Investigation on microstructure and mechanical properties of Al–Zn composite during accumulative roll bonding (ARB) process

Cited by 126 publications

References 26 publications

Microstructure and Mechanical Properties of Multilayered Cu/Ti Composites Fabricated by Accumulative Roll Bonding

Microstructure and Mechanical Properties of Multilayered Cu/Ti Composites Fabricated by Accumulative Roll Bonding

The Suppression of Instabilities via Biphase Interfaces During Bulk Fabrication of Nanograined Zr

Roll Bonding Properties of Al/Cu Bimetallic Laminates Fabricated by the Roll Bonding Technique

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