Texture, Microstructure and Mechanical Properties of 6111 Aluminum Alloy Subject to Rolling Deformation

Zhang, Lixin; Wang, Yihan; Yang, Xiaohui; Li, Kai; Ni, Song; Du, Yong; Song, Min

doi:10.1590/1980-5373-mr-2017-0549

Cited by 38 publications

(15 citation statements)

References 23 publications

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“…This could be attributed to the solution treatment applied before the ECAP process, which gave rise to a random texture, similar to the investigation of Zhang et al [29] for AA6011 alloy before rolling deformation. On the other hand, after the first ECAP pass the texture totally changes with the apparition of shearing and recrystallization components.…”

Section: Texture Evolutionsupporting

confidence: 80%

Microstructure and Mechanical Properties of AA6082-T6 by ECAP Under Warm Processing

Khelfa

Muñoz-Bolaños

et al. 2019

Met. Mater. Int.

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An AA6082 alloy deformed by equal channel angular pressing (ECAP) was studied. The evolution of microstructure as a function of the strain imparted was evaluated by optical microscopy (OM), scanning electron microscopy (SEM) coupled with an electron backscattered diffraction (EBSD) detector, X-ray diffraction (XRD) and Differential Scanning Calorimetry (DSC). XRD showed that MgSi2 precipitates developed in the ECAPed specimens. Texture analysis showed the apparition of two types of textures, one associated with shearing deformation and the second due to the recrystallization phenomena. Mechanical strength properties measured by tensile tests increased in the first ECAP pass, and then progressively diminished. This phenomenon was associated to the activation of continuous softening phenomena. Calorimetric analysis indicated a slightly rise in the recrystallization temperature of the deformed specimens. Also, the stored energy increased with rising ECAP passes due to the production of new dislocations. The average geometrically necessary dislocation (GND) density, measured by EBSD, increased with increasing ECAP passes. However, the rate of increase slows down with the progress of ECAP passes.

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Section: Texture Evolutionsupporting

confidence: 80%

Microstructure and Mechanical Properties of AA6082-T6 by ECAP Under Warm Processing

Khelfa

Muñoz-Bolaños

et al. 2019

Met. Mater. Int.

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“…The dissolution temperature of phases containing Fe and Si elements is very high. So small indissoluble these phases can still be present within the grains and beside the grain boundaries [34,35].…”

Section: Optical Micrographsmentioning

confidence: 99%

Fractional Recrystallization Behavior of Impurity-Doped Commercially Pure Aluminum

Kaiser

2020

JEMMME

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This manuscript reports the effects of trace impurities on the fractional recrystallization behavior of commercially pure aluminum. To allow the recrystallization cold rolled by 75% alloy samples are annealed isothermally at 700ºK for different time up to 60 minutes. Recrystallization kinetics is evaluated from the micro hardness variation of the different annealed samples. The JMAK type analysis is also used to study the recrystallization behavior as well as to observe the correlation with the experimental results. The behavior of the fraction recrystallization between two methods the trace impurities added alloys is evidence for the higher variation as to form GP zones and metastable phases during annealing. Higher addition shows the more variation as the formation of higher fraction phases. The microstructural study reveals that annealing at 700ºK for 30 minutes the alloys attain almost fully re-crystallized state.

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“…In the automotive industry, AA6111 is an automotive body-sheet aluminum alloy that used for structural applications [ 3 ]. It was developed by Alcan’s research laboratories in Canada.…”

Section: Introductionmentioning

confidence: 99%

Direct Chill Casting and Extrusion of AA6111 Aluminum Alloy Formulated from Taint Tabor Scrap

et al. 2020

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AA6111 aluminum automotive body-sheet alloy has been formulated from 100% Taint Tabor scrap aluminum. Direct chill casting with and without high shear melt conditioning (HSMC) was used to produce the AA6111 alloy billets. Both homogenized and non-homogenized billets were extruded into sheets. The optical micrographs of the melt conditioned direct chill (MC-DC) samples showed refined equiaxed grains in comparison to direct chill (DC) cast and direct chill grain refined (DC-GR) samples. Optical metallography showed extensive peripheral coarse grain (PCG) for the DC, DC-GR and MC-DC planks extruded from the homogenized standard AA6111 billets while planks extruded from modified AA6111 billets (with recrystallization inhibitors) showed thin PCG band. The co-addition of recrystallization inhibitors Mn, Zr, and Cr with elimination of the billet homogenization step had a favorable impact on the microstructure of the AA6111 alloy following the extrusion process where a fibrous grain structure was retained across the whole section of the planks. The mechanical properties of as-cast planks extruded from non-homogenized billets were similar to those extruded from homogenized billets. Eliminating the homogenization heat treatment step prior to extrusion has important ramifications in terms of processing cost reduction.

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Texture, Microstructure and Mechanical Properties of 6111 Aluminum Alloy Subject to Rolling Deformation

Cited by 38 publications

References 23 publications

Microstructure and Mechanical Properties of AA6082-T6 by ECAP Under Warm Processing

Microstructure and Mechanical Properties of AA6082-T6 by ECAP Under Warm Processing

Fractional Recrystallization Behavior of Impurity-Doped Commercially Pure Aluminum

Direct Chill Casting and Extrusion of AA6111 Aluminum Alloy Formulated from Taint Tabor Scrap

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