Microstructural evolution and mechanical properties of Al–Zn–Mg–Cu alloy processed by integrated extrusion and equal channel angular pressing (iECAP) and heat treatment

Xu, Xiaojing; Li, Chong; Wang, Saifu; Tabie, Vitus Mwinteribo; Liu, Zhigang; Zhang, Tianci

doi:10.1088/2053-1591/ab23a0

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…where K (=0.040MPam −1/2 [28]) was an experimental constant and D 1 and D 2 were the recrystallized grain sizes of the 5182 Al alloy before and after Ce-modification. Therefore, the calculated ∆σ was approximately 19.9 MPa, which was consistent with the present experimentally obtained data.…”

Section: Effect Of Ce-rich Mischmetal On Mechanical Propertiesmentioning

confidence: 99%

Effects of Ce-Rich Mischmetal on Microstructure Evolution and Mechanical Properties of 5182 Aluminum Alloy

et al. 2019

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This paper addresses the effects of Ce-rich mischmetal on the microstructure evolution of a 5182 aluminum alloy during annealing and rolling processes. The Ce-rich mischmetal was added to an as-cast 5182 aluminum alloy in an induction furnace, and this was followed by homogenized annealing at 450 °C for 24 h and a rolling operation. The microstructure evolution and mechanical properties’ analysis of the 5182 Al alloy were characterized. The results show that the Ce-rich mischmetal could modify the microstructure, refine the α-Al grains, break the network distribution of Mg2Si phases, and prevent Cr and Si atoms from diffusing into the Al6(Mn, Fe) phase in the as-cast 5182 Al alloys. Ce-rich mischmetal elements were also found to refine the Al6(Mn, Fe) phase after cold rolling. Then, the refined Al6(Mn, Fe) particles inhibited the growth of recrystallization grains to refine them from 10.01 to 7.18 μm after cold rolling. Consequently, the tensile strength of the cold-rolled 5182 Al alloy increased from 414.65 to 454.34 MPa through cell-size strengthening, dislocation density strengthening, and particle strengthening. The tensile strength of the recrystallization annealed 5182 Al alloy was increased from 322.16 to 342.73 MPa through grain refinement strengthening, and this alloy was more stable after the recrystallization annealing temperature.

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Section: Effect Of Ce-rich Mischmetal On Mechanical Propertiesmentioning

confidence: 99%

Effects of Ce-Rich Mischmetal on Microstructure Evolution and Mechanical Properties of 5182 Aluminum Alloy

et al. 2019

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Parametric optimization for friction stir processing in Al-Zn-Mg-Cu alloy

Yang

Ding

Li³

2021

Materials and Manufacturing Processes

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Investigation of deformation induced precipitation and the related microstructure evolution of Al–Zn–Mg–Cu alloy

Zuo

Hou

Shu

et al. 2020

Mater. Res. Express

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As heating time, temperature, strain and strain rate are the four most commonly used controllable parameters in thermomechanical treatments of high strength aluminum alloy, which have great influence on microstructures and mechanical properties. 7055 Al alloy was subjected to solution and thermomechanical treatment (4 routes) at different heating time (route 1), temperatures (route 2), strains (route 3) and strain rates (route 4) to investigate their effects on grain structure and precipitation. The results show that MgZn2 particles are almost completely dissolved back into the matrix after solution treatment, but the coarse Al7Cu2Fe and Al2CuMg remain steady. Particles preferentially precipitate at grain boundaries. Precipitates free zones appear after aging at 300 °C for different time in route 1. With the increased over aging time, precipitates grow and the quantity of rod-shaped increases. After hot deformation, grains are elongated and numerous deformation induced precipitates are formed. Grain width increases with the increase of strain temperature/rate in route 2 and route 4. However, with further strain, grain width first decreases and then increases with the minimum value taken at 60% deformation in route 3. Due to the effect of deformation on spheroidization and refinement of precipitates, the size of precipitates decreases with strain and is spheroidized gradually in route 2 compared with route 1. Strain energy plays the dominant role during over aging or at low strain leading the rod liked precipitates, with the increase of strain, interfacial energy plays the decisive role, and precipitates are spherical.

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Microstructural evolution and mechanical properties of Al–Zn–Mg–Cu alloy processed by integrated extrusion and equal channel angular pressing (iECAP) and heat treatment

Cited by 3 publications

References 26 publications

Effects of Ce-Rich Mischmetal on Microstructure Evolution and Mechanical Properties of 5182 Aluminum Alloy

Effects of Ce-Rich Mischmetal on Microstructure Evolution and Mechanical Properties of 5182 Aluminum Alloy

Parametric optimization for friction stir processing in Al-Zn-Mg-Cu alloy

Investigation of deformation induced precipitation and the related microstructure evolution of Al–Zn–Mg–Cu alloy

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