Microstructure and Mechanical Properties of AA5005/AA6061 Laminated Composite Processed by Accumulative Roll Bonding

Su, Lihong; Lü, Cheng; Deng, Guanyu; Tieu, Anh Kiet

doi:10.1007/s11663-013-9869-x

Cited by 25 publications

(19 citation statements)

References 22 publications

(32 reference statements)

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“…This is largely consistent with previous studies [22] which reported a ±(17 ∘ ± 3 ∘ ) deviation angle between the bonding interface and the rolling direction of the Al/Al(Sc) multilayered sheets. Previous studies show that the strength of dissimilar LMCs fabricated by ARB first decreases and then increases; the elongation decreases after two rolling cycles [37][38][39][40][41][42]. The increase of strength is contributed by the hardening of sample caused by piling up of the dislocations and grain refinement [20,23,48,49].…”

Section: Resultsmentioning

confidence: 94%

“…To obtain a single slab of a solid material, the rolling involved not only deformation, but also roll bonding [21]. Recently, more and more studies have been focused on UFG laminated metal composites (LMCs) consisting of bimetal systems fabricated by ARB, such as aluminium/aluminium (scandium) [Al/Al(Sc)] [22], aluminium/copper (Al/Cu) [23], aluminium/nickel (Al/Ni) [24,25], aluminium/zinc (Al/Zn) [26], titanium/aluminium (Ti/Al) [27][28][29], copper/zirconium (Cu/Zr) [30], Cu/Ni [31], aluminium/magnesium (Al/Mg) [32][33][34][35][36], Al/Al alloy [37][38][39][40][41][42], Al/steel [43], copper/niobium (Cu/Nb) [44], and zirconium/niobium (Zr/Nb) [45]. There are even some LMCs fabricated by ARB using three or more metal systems [46,47].…”

Section: Introductionmentioning

confidence: 99%

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Interface Shear Actions and Mechanical Properties of Nanostructured Dissimilar Al Alloy Laminated Metal Composites

Chen

Quanzhong

2015

Journal of Nanomaterials

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The laminated metal composites (LMCs) of dissimilar metals (aluminium alloys: AA1100/AA7075) were fabricated using the accumulative roll bonding technique in conjunction with cold rolling. The LMCs of ultrafine grained AA1100 and nanostructured precipitates of AA7075 achieved metallurgical bonding. The microstructure of the bonding interfaces and constituent metals was investigated using scanning electron microscopy and transmission electron microscopy for the LMCs with different layers. The deformation incompatibility and shear actions were analyzed using the microanalysis of dissimilar bonding interfaces. The mechanism of grain refinement of LMCs was investigated and described based on the microstructure characterization. The mechanical properties, strengthening mechanism, and fracture mechanism of LMCs were also investigated. The research results showed that the strengthening mechanism of LMCs is the recombination action of grain refinement, dislocation, and laminated interfacial strengthening. The coordinated deformation of dissimilar metals and the layer thickness are important in improving the mechanical properties of LMCs consisting of dissimilar metals.

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Interface Shear Actions and Mechanical Properties of Nanostructured Dissimilar Al Alloy Laminated Metal Composites

Chen

Quanzhong

2015

Journal of Nanomaterials

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“…Figure 2 shows the typical optical micrographs of the investigated 6061 alloy under T6 and T7-48 conditions. Generally, two types of particles can be found in all four aging conditions: the gray Al-Fe-Si intermetallics and the black undissolved Mg2Si particles, both of which are fine due to the extrusion process [18]. No obvious change can be observed in the size and the volume fraction of the two intermetallic particles, as aging at 200 °C could not cause any remarkable changes in these intermetallic particles [19].…”

Section: Materials and Experimental Proceduresmentioning

confidence: 98%

Effect of Overaging on the Cyclic Deformation Behavior of an AA6061 Aluminum Alloy

Liu

Mirza

Chen

2018

Metals

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The present work encompasses the effect of overaging on the strain-controlled low-cycle fatigue (LCF) behavior of an extruded AA6061 aluminum alloy at varying strain amplitudes. During the T7 aging treatment, the size of precipitates increased from 60 nm under T6 conditions to 220 nm after aging for 48 h at 200 • C, leading to a decrease in the monotonic tensile strength. During the LCF tests, nearly symmetrical hysteresis loops can be observed in the mid-life cycle under all test conditions, whereas the first-cycle hysteresis loops were moderately inflected under long-aging conditions. With increasing aging time, the cyclic peak stresses decreased and the plastic strain increased. Nearly ideal Masing behavior was exhibited under T6 conditions, while it was lost under T7 overaging conditions. The cyclic stress responses were similar under all tested conditions, involving stabilization at low strain amplitudes and softening at high strain amplitudes, with initial hardening for the first few cycles. Compared to the T6 condition, the fatigue life increased with increasing T7 aging time. Various LCF parameters were estimated based on the Coffin-Manson and Basquin relationships and on the LCF experimental results. The relationship between the fatigue life, strength, and microstructure of the investigated AA6061 aluminum alloy under various aging conditions was discussed.

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“…Aluminum alloys AA1050, AA5005, and AA6061 were used as starting materials of ARB to produce AA1050/ AA6061 and AA5005/AA6061 composites in the author's previous work. [14,15] It was found that although the two materials exhibited different hardness values as they positioned alternatively in the composite, both materials was strengthened after ARB deformation. The current work is aimed to study the annealing behavior of the ARB processed materials AA1050/AA1050, AA6061/AA6061, and AA1050/AA6061.…”

Section: Introductionmentioning

confidence: 99%

Annealing Behavior of Accumulative Roll Bonding Processed Aluminum Composites

Lü

Deng

2013

steel research int.

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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, the ARB process up to five cycles was performed to the starting materials AA1050 and AA6061 and produced three different laminates: AA1050/AA1050, AA6061/AA6061, and AA1050/AA6061. The grain size of AA1050 and AA6061, in all laminates, was reduced significantly after ARB deformation. Meanwhile, a remarkable enhancement in the hardness was achieved. The materials were annealed at different conditions and the microstructures and mechanical properties of the materials were investigated. Static annealing was carried out at temperatures of 100–400°C for 30 min in order to examine the thermal stability of the aluminum alloy. The grain size and hardness evolution of both the AA1050 and AA6061 alloys, in all the three laminates, showed a similar change with the annealing temperature. Annealing induced hardening was observed at 100°C for all the materials examined, and the microstructure of the alloys stayed almost the same as the as‐deformed alloys. The materials softening started after annealing at 150°C, and the hardness decreased rapidly between 150 and 300°C and then stayed stable. The change of the hardness values with the annealing time at low temperature was nearly negligible. The hardness and grain size values of the AA1050 and AA6061 in both the monotonic laminates and composite are similar.

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Microstructure and Mechanical Properties of AA5005/AA6061 Laminated Composite Processed by Accumulative Roll Bonding

Cited by 25 publications

References 22 publications

Interface Shear Actions and Mechanical Properties of Nanostructured Dissimilar Al Alloy Laminated Metal Composites

Interface Shear Actions and Mechanical Properties of Nanostructured Dissimilar Al Alloy Laminated Metal Composites

Effect of Overaging on the Cyclic Deformation Behavior of an AA6061 Aluminum Alloy

Annealing Behavior of Accumulative Roll Bonding Processed Aluminum Composites

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