Microstructural evolutions and mechanical properties of 6082 aluminum alloy part produced by a solution-forging integrated process

Zhao, Ning; Ma, Huijuan; Sun, Qian; Hu, Zhili; Yan, Yang; Chen, Tianfu; Hua, Lin

doi:10.1016/j.jmatprotec.2022.117715

Cited by 23 publications

(13 citation statements)

References 37 publications

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“…Additionally, during the hot extrusion process, coarse-grained structures are prevalent in the surface layers of 2×××, 6×××, and 7××× Al alloys, with grain sizes reaching 10 to 100 times those at the center, significantly reducing the strength, toughness, and stress corrosion cracking (SCC) resistance [81][82][83]. To ensure product quality, it is common practice to remove areas with inferior performance or discard the entire product, leading to increased production costs [84,85]. Therefore, the inhomogeneity along the thickness direction of the plate must be fully considered when studying the effects of heat treatment and hot deformation on the microstructure and properties of spray-formed Al-Zn-Mg-Cu alloys.…”

Section: Rollingmentioning

confidence: 99%

“…However, existing studies have shown that the homogenization of spray-formed Al-Zn-Mg-Cu alloys is beneficial for promoting the precipitation of nanoscale dispersed phases such as Al 3 Zr, Al 3 Sc, and Al 7 Cr, which is beneficial for inhibiting recrystallization and improving the comprehensive performance of the alloy. For example, Yu et al [85] conducted an extended solution treatment (lasting for 24 h at 450 • C) on spray-formed 7055 extruded plates that had not undergone homogenization treatment. This approach resulted in superior mechanical properties, specifically, a yield strength of 608 MPa, a tensile strength of 667 MPa, and an elongation of 10%, respectively.…”

Section: Homogenizationmentioning

confidence: 99%

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Effect of Hot Deformation and Heat Treatment on the Microstructure and Properties of Spray-Formed Al-Zn-Mg-Cu Alloys

Cao,

Lin,

Zhang

et al. 2024

Metals

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Spray forming is a manufacturing process that enables the production of high-performance metallic materials with exceptional properties. Due to its rapid solidification nature, spray forming can produce materials that exhibit fine, uniform, and equiaxed microstructures, with low micro-segregation, high solubility, and excellent workability. Al-Zn-Mg-Cu alloys have been widely used in the aerospace field due to their excellent properties, i.e., high strength, low density, and outstanding machinability. The alloy manufactured by spray forming has a combination of better impact properties and higher specific strength, due to its higher cooling rate, higher solute concentration, and lower segregation. In this manuscript, the recent development of spray-formed Al-Zn-Mg-Cu alloys is briefly reviewed. The influence of hot working, i.e., hot extrusion, hot forging, and hot rolling, as well as different heat treatments on the property and microstructure of spray-formed Al-Zn-Mg-Cu alloys is introduced. The second phases and their influence on the microstructure and mechanical properties are summarized. Finally, the potential in high-temperature applications and future prospects of spray-formed aluminum alloys are discussed.

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Section: Rollingmentioning

confidence: 99%

Section: Homogenizationmentioning

confidence: 99%

Effect of Hot Deformation and Heat Treatment on the Microstructure and Properties of Spray-Formed Al-Zn-Mg-Cu Alloys

Cao,

Lin,

Zhang

et al. 2024

Metals

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“…However, the strength of the aluminum alloy is inferior to that of the T4R4 and T6R4 specimens in this study. Zhao et al [42] applied a solution-forging integrated process to prepare Al 6082 aluminum alloy, which was a continuous process like that in this study. The strength and ductility were approximately 330 MPa and 10.2%, respectively.…”

Section: Microstructure and Mechanical Propertiesmentioning

confidence: 99%

“…According to Zhao et al [42], the use of a solution-forging integrated process can suppress abnormal grain growth. Therefore, it can be inferred that a similar CCDR process in this study can effectively prevent abnormal grain growth.…”

Section: Metallurgical Mechanism Of Ccdr Al Alloymentioning

confidence: 99%

Effects of Heat-Treatment and Cold-Rolling on Mechanical Properties and Impact Failure Resistance of New Al 6082 Aluminum Alloy by Continuous Casting Direct Rolling Process

Zhao,

Hung,

Chen

2024

Materials

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Al 6082 aluminum alloy has excellent corrosion resistance, strength, and formability. However, owing to the recrystallization effect of a hot working process, coarse grains form easily in this material, which reduces its strength and service life. The novel continuous casting direct rolling (CCDR) method can prevent the deterioration of this material. Thus, we used CCDR Al 6082 aluminum alloy as the research material in this study. By subjecting a CCDR Al 6082 aluminum alloy to heat treatment (T4 and T6) and cold rolling, the influence of recrystallization effect on its mechanical properties and on impact failure resistance were explored. The results demonstrated that the specimen subjected to T4 heat treatment had a higher elongation and that the specimen subjected to T6 heat treatment had a higher strength. After cold rolling, the hardness and strength of the specimens subjected to different heat treatments (coded T4R4 and T6R4) increased because of the work’s hardening effect. Moreover, the elongations of both specimens decreased, but they were higher than the industrial standard (>10%). The strength of specimen T6R4 was higher (up to 400 MPa) than specimen T4R4. Moreover, relative to specimen T4R4, specimen T6R4 had greater tensile and Charpy impact failure toughness.

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“…[4,5] Due to its higher brightness, better corrosion resistance, and decorative effect compared to electroplated parts after anodizing, and lower production costs, it has received high attention from automotive manufacturers. [6] However, wrinkles generated during the extrusion process and unstable mechanical properties are still obstacles to its applications. [7] These shortcomings are closely related to the microstructure evolution.…”

Section: Introductionmentioning

confidence: 99%

Evolution Behavior of Shear Band in Al‐0.5Mg‐0.4Si‐0.1Cu Alloy during Hot Compression Process

Wang,

Ding,

et al. 2024

Adv Eng Mater

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To clarify the evolution behavior of shear bands in Al‐0.5Mg‐0.4Si‐0.1Cu alloy under high temperature conditions, isothermal compression tests were carried out under 400 °C, 450 °C, and 500 °C with 50% compression at a strain rate of 1s‐1. Through Electron Backscattered Diffraction (EBSD), Schmid factors are mainly distributed between 0.395 and 0.495, making lattices easy to rotate and shear bands formed. The shear band, a local plastic deformation structure, has significant impact on the dynamic recrystallization and preferred orientation of grains. Through the recrystallization distribution maps, subgrains absorb a large amount of dislocations, which increases the grains orientation difference, resulting in the formation of recrystallized grains with high angle grain boundaries. In addition, bulging grain boundaries promote the formation of new nuclei. The newly formed nuclei will generate and grow by absorption of dislocations, which is the feature of discontinuous dynamic recrystallization (DDRX). These two phenomena were further confirmed by Transmission Electron Microscope (TEM) tests. Finally, R‐Cube textures mainly formed in shear bands at 400 °C, while in the matrix E‐textures mainly formed at 400 °C and 450 °C, and R‐Goss textures were rotated to form at 500 °C, which was confirmed by EBSD test results.This article is protected by copyright. All rights reserved.

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Microstructural evolutions and mechanical properties of 6082 aluminum alloy part produced by a solution-forging integrated process

Cited by 23 publications

References 37 publications

Effect of Hot Deformation and Heat Treatment on the Microstructure and Properties of Spray-Formed Al-Zn-Mg-Cu Alloys

Effect of Hot Deformation and Heat Treatment on the Microstructure and Properties of Spray-Formed Al-Zn-Mg-Cu Alloys

Effects of Heat-Treatment and Cold-Rolling on Mechanical Properties and Impact Failure Resistance of New Al 6082 Aluminum Alloy by Continuous Casting Direct Rolling Process

Evolution Behavior of Shear Band in Al‐0.5Mg‐0.4Si‐0.1Cu Alloy during Hot Compression Process

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