Investigation on microstructure and mechanical properties of Al-Zn-Mg-Cu alloys with various Zn/Mg ratios

Y Zou, X Wu, S Tang, Q Zhu, H Song, M Guo… - Journal of Materials …, 2021 - Elsevier
Abstract The effects of Zn/Mg ratios on microstructure and mechanical properties of Al-Zn-Mg-
Cu alloys aged at 150° C have been investigated by using tensile tests, optical …

Elucidating the role of a unique step-like interfacial structure of η4 precipitates in Al-Zn-Mg alloy

H Kim, H Choi, J Oh, S Lee, H Kwon, ES Park… - Science …, 2023 - science.org
Al-Zn-Mg alloys are widely used in the transportation industry owing to their high strength-to-
weight ratio. In these alloys, the main strengthening mechanism is precipitation hardening …

Unraveling precipitation evolution and strengthening function of the Al-Zn-Mg-Cu alloys with various Zn contents: Multiple experiments and integrated internal-state …

J Tang, M Liu, G Bo, F Jiang, C Luo, J Teng… - Journal of Materials …, 2022 - Elsevier
Zn content is one of the most concerned factors in the development of next generation ultra-
strength Al-Zn-Mg-Cu alloys owing to its essential role in precipitation strengthening. In the …

Experimental and DFT characterization of η′ nano-phase and its interfaces in AlZnMgCu alloys

F Cao, J Zheng, Y Jiang, B Chen, Y Wang, T Hu - Acta Materialia, 2019 - Elsevier
The structures and energetics of η′ nano-phase and its interfaces in a peak-aged Al single
bondZnsingle bondMgsingle bond Cu alloy were thoroughly investigated, using the …

Evolution of precipitate and precipitate/matrix interface in Al-Zn-Mg-Cu (-Ag) alloys

X Zhang, Z Han, L Xu, H Ni, X Hu, H Zhou, Y Zou… - Journal of Materials …, 2023 - Elsevier
Evolution of precipitate and precipitate/matrix interface in artificially aged Al-Zn-Mg-Cu (-Ag)
alloys has been systematically studied. In the early stage of ageing, Ag, as a fast diffuser …

Precipitation in an Al-Zn-Mg-Cu alloy during isothermal aging: Atomic-scale HAADF-STEM investigation

X Xu, J Zheng, Z Li, R Luo, B Chen - Materials Science and Engineering: A, 2017 - Elsevier
The present study, using advanced Cs-corrected high-angle annular dark field–scanning
transmission electron microscopy (HAADF-STEM), reports on a comprehensive investigation …

Effect of Cu content and Zn/Mg ratio on microstructure and mechanical properties of Al–Zn–Mg–Cu alloys

Y Li, Y Wang, B Lu, W Yu, H Wang, G Xu… - Journal of Materials …, 2022 - Elsevier
Abstract Al–Zn–Mg–Cu alloys were fabricated with water-cooled copper casting. The
microstructure of the alloys was characterized by electron probe microanalysis (EPMA) …

Effect of pre-aging and precipitation behavior on mechanical properties of 7055 aluminum alloy processed by hot-forming quenching

H Jiang, H Xing, Z Xu, B Yang, W Feng, T Sui… - Materials …, 2023 - Elsevier
Hot-forming Quenching (HFQ) can lead to significant changes in microstructure of high-
strength aluminum alloys for car body sheet. Furthermore, through effective control, desired …

[HTML][HTML] Effect of pre-ageing treatment on second nucleating of GPII zones and precipitation kinetics in an ultrafine grained 7075 aluminum alloy

J Luo, H Luo, S Li, R Wang, Y Ma - Materials & Design, 2020 - Elsevier
To clarify the influence of a pre-ageing treatment on precipitation behaviors in the AA7075
aluminum alloys with ultrafine grain (UFG) structure, the alloys were pre-aged prior to a …

Co-precipitation of T′ and η′ phase in Al-Zn-Mg-Cu alloys

Y Zou, X Wu, S Tang, Q Zhu, H Song, L Cao - Materials Characterization, 2020 - Elsevier
The ageing precipitates and strengthening effects of Al-Zn-Mg-Cu alloys with different Zn
contents were investigated. The results showed that increasing Zn contents can significantly …