Effect of multi-stage solution and aging process on microstructure and properties of Al–10.7Zn–2.8Mg–1.2Cu–0.2Zr aluminum alloy extrusion materials

Xu, Xiaojing; Ze, Jiang; Mao, Qiang; Zhang, Tianci; Du, Donghui; Zhu, Chenyu; Wang, Hao

doi:10.1088/2053-1591/ab0876

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…[21] Moreover, the solution heat treatment of aluminum alloy can also affect its properties. [22,23] El-Amoush found that grain coarsening of 7-series single-stage aged aluminum alloys can reduce the breakdown potential in a degreased NaCl solution. [24] The grain size is affected by solution heat treatment.…”

Section: Introductionmentioning

confidence: 99%

Effect of retrogression re‐aging treatment on the stress corrosion behavior of the 7075 Al–Zn–Mg–Cu alloy

Liu

Guo

et al. 2022

Materials & Corrosion

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This paper studies the influence of the regression re-aging (RRA) process on the mechanical properties and corrosion resistance of 7075. In the RRA heat treatment, the material properties are markedly affected by the variation of parameters in the regression stage. When the regression temperature and the regression duration increase, the mechanical properties of the material decrease. There was no intergranular corrosion in the samples treated by RRA, while obvious intergranular corrosion occurred in the T6 sample. Compared with the T6 sample, the RRA-190-0.5 sample with optimized parameters has a higher density of the precipitated phase and narrower precipitate-free zone, and the precipitated phase along the grain boundary is discontinuous, isolated, and short. Compared with the single-stage peak aging treatment, the RRA treatment can considerably improve the corrosion resistance and stress corrosion resistance but slightly reduce the strength. The best heat treatment process condition is 120°C/24 h + 190°C/0.5 h + 120°C/24 h.

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Section: Introductionmentioning

confidence: 99%

Effect of retrogression re‐aging treatment on the stress corrosion behavior of the 7075 Al–Zn–Mg–Cu alloy

Liu

Guo

et al. 2022

Materials & Corrosion

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Effect on microstructure and corrosion resistance of semi-solid slurry of 7A04 aluminum alloy by electromagnetic stirring

Zhu

Xu²,

Zhao

et al. 2021

Mater. Res. Express

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The microstructures and corrosion resistance of electromagnetic stirring (EMS) semi-solid slurry and as-cast 7A04 aluminum alloy were compared in this work. The results show that the primary microstructure of the as-cast 7A04 aluminum alloy is mainly dendritic and columnar dendrite with obvious elements segregation. In contrast, semi-solid processing can effectively form homogeneous and round primary α-Al grains, and significantly reducing element segregation. In addition, the main phases of the two forming methods (as-cast and semi-solid) both involved α-Al, η-MgZn2, θ-Al2Cu. With the decrease of solidification temperature, the semi-solid alloy formed by electromagnetic stirring increases the precipitation of brittle phase S-Al2CuMg. The self-corrosion potential of the semi-solid alloy is greater than that of the as-cast alloy, and the polarization curve has obvious passivation characteristics. Semi-solid processing could improve corrosion resistance of 7A04 aluminum alloy obviously.

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Effect of various multi-stage solution treatments on the microstructure and properties of cold-extruded Al–9.74Zn–2.59 Mg–0.94Cu–0.2Zr–0.83Ti alloy

Zhou

Wang

et al. 2022

Journal of Materials Research

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Effect of multi-stage solution and aging process on microstructure and properties of Al–10.7Zn–2.8Mg–1.2Cu–0.2Zr aluminum alloy extrusion materials

Cited by 3 publications

References 19 publications

Effect of retrogression re‐aging treatment on the stress corrosion behavior of the 7075 Al–Zn–Mg–Cu alloy

Effect of retrogression re‐aging treatment on the stress corrosion behavior of the 7075 Al–Zn–Mg–Cu alloy

Effect on microstructure and corrosion resistance of semi-solid slurry of 7A04 aluminum alloy by electromagnetic stirring

Effect of various multi-stage solution treatments on the microstructure and properties of cold-extruded Al–9.74Zn–2.59 Mg–0.94Cu–0.2Zr–0.83Ti alloy

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