Thermal stability of microstructure, mechanical properties, formability parameters and crystallographic texture in an Al-7075 alloy processed by accumulative roll bonding

Velázquez-Carrillo, Omar Alejandro; García-Pastor, Francisco Alfredo

doi:10.1016/j.jmrt.2021.02.041

Cited by 19 publications

(3 citation statements)

References 52 publications

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“…1 AA 7xxxAl alloys series (Al-Zn-Cu-Mg) is one of the strongest Aluminum alloys which is best suited for such applications. 2 These alloys have remarkable high-strength to weight ratio, great toughness, excellent corrosion resistance and good machinability with low cost.…”

Section: Introductionmentioning

confidence: 99%

Optimization of dry sliding wear parameters through RSM approach of fine-grained 7075 Al alloy developed by MAC

Yadav¹,

Padap²

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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This study examines the influence of multi-axial Compression (MAC) on the wear attributes of 7075 Al alloy and optimize the dry sliding wear parameters using the response surface methodology (RSM). Optical microscopy images were used to detect microstructural changes in the 7075 Al alloy after MAC processing. The Face Centered Central Composite Design (FCCD) method was made up of three factors, each with three levels. To investigate the impact of various factors and how they interact with one another on wear, surface plots, contour plots, and mean effects plots were developed. The coefficient of regression R2 was 0.9621, demonstrating the constructed model’s acceptable accuracy. After six passes, average grain size was observed to reduce by up to 2.3 µm. The alloy processed by MAC is harder and stronger than the zero MAC pass alloy. The mechanical properties of Al alloy enhance with increased MAC pass. In this study, the Vickers micro-hardness, X-ray diffraction analysis, optical microstructural, energy dispersive X-ray spectroscopy analysis (EDS), tensile test, and scanning electron microscopy (SEM) were performed on broken tensile specimens and worn surface of the wear pin.

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Section: Introductionmentioning

confidence: 99%

Optimization of dry sliding wear parameters through RSM approach of fine-grained 7075 Al alloy developed by MAC

Yadav¹,

Padap²

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Furthermore, attempts were made to explore severe plastic deformation processes to obtain nanostructured materials [16][17][18][19] . Among these mechanical methods, High-Energy Ball Milling (HEBM) is a simple and efficient technique to prepare alloys at room temperature with nanocrystalline grains (measuring below 100nm) [20][21][22][23] .…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Powders of AA7075 - SiC Manufactured by High-Energy Ball Milling in a Bath of Isopropyl Alcohol

Barbosa,

Pina,

Moura

et al. 2023

Mat. Res.

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In this study, aluminum alloy 7075 (AA7075) nanopowders were prepared by High-Energy Ball Milling (HEBM) in a bath of isopropyl alcohol. The process was investigated in different milling times and silicon carbides (SiC) reinforcement percentual. The effects of these parameters on the samples were characterized by X-ray diffraction (XRD), Laser Diffraction (LD), Scanning Electron Microscopy (SEM), and Energy Dispersive Spectroscopy (EDS). The XRD analyses showed that as the grinding time increases, the micro deformation also increases, while the crystallite and particle size decrease until a constant value at 480 min. If the percentual of SiC reinforcement increases until 5 percent, there is a minimum change in the results compared to AA 7075 milling 480 min with no reinforcement. On the other hand, when the AA7075 was milled for 480 min and reinforced by 10 percent SiC, the best structural refinement result was achieved.

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“…Especially viscoplastic self-consistent (VPSC) modeling has been established as reliable method for investigating texture evolution during plastic deformation [6,7]. It has been successfully employed for investigating different steels and non-iron alloys, including in particular aluminum alloys of the 1xxx [8], 2xxx [9][10][11], 5xxx [11][12][13][14][15][16][17][18][19][20], 6xxx [11,[20][21][22] and 7xxx [11,[22][23][24] series.…”

Section: Introductionmentioning

confidence: 99%

Viscoplastic Self-Consistent (VPSC) Modeling for Predicting the Deformation Behavior of Commercial EN AW-7075-T651 Aluminum Alloy

Domitner

Buzolin

Patil

et al. 2022

KEM

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Viscoplastic self-consistent (VPSC) modeling was used for investigating the deformation behavior of commercial EN AW-7075-T651 aluminum alloy at room temperature under quasi-static tension and compression (i) parallel, (ii) diagonal and (iii) transverse to the rolling direction. Textures of the as-received plate and of the samples after tensile and compression testing were determined using electron backscatter diffraction (EBSD). Euler angles and area fractions of the grains were used as input for calculating direction-dependent flow curves and pole figures of the deformed material. The coefficients of the integrated Voce strain hardening law were adjusted in order to fit the calculated flow curves to flow curves obtained from tensile and compression testing. Pole figures calculated with the VPSC modeling method were validated with pole figures obtained from EBSD analysis of deformed samples. VPSC modeling was successfully applied for predicting the general deformation behavior of EN AW-7075-T651 under both tension and compression. However, texture evolution during tensile testing was negligible, whereas notable texture evolution during compression testing occurred beyond a critical strain value.

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Thermal stability of microstructure, mechanical properties, formability parameters and crystallographic texture in an Al-7075 alloy processed by accumulative roll bonding

Cited by 19 publications

References 52 publications

Optimization of dry sliding wear parameters through RSM approach of fine-grained 7075 Al alloy developed by MAC

Optimization of dry sliding wear parameters through RSM approach of fine-grained 7075 Al alloy developed by MAC

Nanostructured Powders of AA7075 - SiC Manufactured by High-Energy Ball Milling in a Bath of Isopropyl Alcohol

Viscoplastic Self-Consistent (VPSC) Modeling for Predicting the Deformation Behavior of Commercial EN AW-7075-T651 Aluminum Alloy

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