Effect of solution time on microstructure, texture and mechanical properties of Al–Mg–Si–Cu alloys

Wang, Xiaofeng; Guo, Muxing; Chapuis, Adrien; Luo, Jinru; Zhang, Jishan; Zhuang, Linzhong

doi:10.1016/j.msea.2015.07.059

Cited by 67 publications

(3 citation statements)

References 34 publications

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“…It is generally believed that the comprehensive properties of alloys are significantly influenced by the rates of heating and cooling during the solution treatment process [16][17][18][19]. At present, the effects of different heating and cooling rates during solution treatment on the microstructure and properties of alloys were studied.…”

Section: Introductionmentioning

confidence: 99%

“…At present, the effects of different heating and cooling rates during solution treatment on the microstructure and properties of alloys were studied. Wang et al [16] observed the formation of more uniformly distributed equiaxed grains in the Al-Mg-Si alloy under rapid heating conditions. The recrystallization microstructure predominantly consisted of equiaxed grains when subjected to a swift heating rate, whereas a slow heating rate resulted in the development of elongated grains.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Different Heating and Cooling Rates during Solution Treatment on Microstructure and Properties of AA7050 Alloy Wires

Gao,

et al. 2024

Materials

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In the present study, the effects of varying heating and cooling rates during the solution treatment process on the microstructure and properties of AA7050 alloy wires were investigated using tensile tests, metallographic microscopy, electron backscattered diffraction, and transmission electron microscopy. It was found that the recrystallized grain size of the alloy, subjected to method of rapid heating, exhibited a smaller and more uniform distribution in comparison to method of slow heating. The low density of η′ strengthening phases after the artificial aging treatment was formed using air cooling method. Meanwhile, by using the water quenching method sufficient solute atoms and more nucleation sites were provided resulting in a large number of η′ strengthening phases being formed. In addition, the alloy processed using the water quenching method displayed higher strength than that treated using the air cooling method for the T6 and T73 states. Furthermore, coarse precipitates formed and less clusters were observed in the matrix, while high density nanoscale clusters and no continuous precipitation are formed when using the water quenching method.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Different Heating and Cooling Rates during Solution Treatment on Microstructure and Properties of AA7050 Alloy Wires

Gao,

et al. 2024

Materials

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“…Textures of polycrystalline aluminium alloys are critical factors because they determine the materials anisotropy, and texture analysis can be used to study the mechanism of microstructure evolution. Wang et al [14] studied the effects of solution time on texture and mechanical properties of aluminium alloys with different contents of iron-rich phase. They found that recrystallisation and the texture of aluminium alloys were strongly affected by solution time, recrystallisation and the dissolution of particles occurred at early stages of SHT for as-rolled alloys.…”

Section: Introductionmentioning

confidence: 99%

A study of various heating effects on the microstructure and mechanical properties of AA6082 using EBSD and CPFE

Shao

Lee

Wang

et al. 2020

Journal of Alloys and Compounds

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The solution heat treatment (SHT) process resolving hardening precipitates in high strength aluminium alloys is a critical step for high-efficient forming processes, such as Hot Form Quench (HFQ ®). SHT largely determines the overall cycle time of a forming process. However, effects of heating process parameters, such as the heating rate and soaking time, on the microstructure and the associated mechanical properties of aluminium alloy 6082, one of the most commonly used aluminium alloys, for HFQ applications have not been systematically investigated. The aim of this study is to explore and understand the relationships among heat treatment conditions, grain microstructure and associated mechanical properties for AA6082. A series of uniaxial tensile tests conducted under various SHT conditions revealed significant variation on mechanical behaviour characterised by stress-strain curves. To correlate these stressstrain relationship with underlying microstructure, the grain and orientation distribution of each heat-treated sample were characterised by the electron backscatter diffraction (EBSD) technique. Due to the presence of a large number of microscopic variables, such as grain size, morphology, texture, grain boundary and etc., the crystal plasticity finite element (CPFE) modelling was employed to identify the key microscopic factors which determine the differences in the observed strength and ductility for all samples. A new CPFE model integrated with local strain criterion was proposed and validated to correlate the ductility and the strength with the material microstructure. This rigorous investigation provides more insights on how microstructure (grain size and texture) affects the mechanical behaviour for AA6082, which enables to enlarge the capability of HFQ for industrial applications.

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Simultaneously Improved Bendability and Strength of Al–Mg–Si–Cu–Zn Alloys by Controlling the Formation and Evolution of Primary Fe‐Rich Phase

Guo

et al. 2023

Adv Eng Mater

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In present work, the formation, evolution, and distribution of the primary Fe‐rich phase in an Al–Mg–Si–Cu–Zn–Fe–Mn alloy are coupling controlled by ultrasonic melt treatment (USMT) and thermomechanical processing (TMP). It is shown in the results that the size of grains and Fe‐rich phase in the as‐cast state can be greatly reduced by the applied optimum USMT at 680 °C. Additionally, the transformation rate of β‐Fe‐rich phase to α‐Fe‐rich phase can be also enhanced. After the coupling control of USMT and TMP, the number density and distribution uniformity of multiscale Fe‐rich particles can be greatly increased or improved, which contributes to the fine‐grained recrystallization microstructure and weakened texture. Finally, compared with the 6xxx series Al alloys (such as AA6016 and AA6111), the alloy sheet in the pre‐aging state exhibits substantially improved bendability and strength (the plastic strain ratio and tensile strength are 0.67 and 304 MPa, respectively). The effect of USMT on the formation and transformation of primary Fe‐rich phase and the mechanisms of improved bendability and strength are deeply discussed.

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Effect of solution time on microstructure, texture and mechanical properties of Al–Mg–Si–Cu alloys

Cited by 67 publications

References 34 publications

Effects of Different Heating and Cooling Rates during Solution Treatment on Microstructure and Properties of AA7050 Alloy Wires

Effects of Different Heating and Cooling Rates during Solution Treatment on Microstructure and Properties of AA7050 Alloy Wires

A study of various heating effects on the microstructure and mechanical properties of AA6082 using EBSD and CPFE

Simultaneously Improved Bendability and Strength of Al–Mg–Si–Cu–Zn Alloys by Controlling the Formation and Evolution of Primary Fe‐Rich Phase

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