Effect of various non-isothermal aging on properties and microstructure of 7055 aluminum alloy

Yang, Xiong‐Li; Cheng, Quanshi; Dong, Yu; Ye, Lingying

doi:10.1016/j.jmrt.2023.07.068

Cited by 8 publications

(1 citation statement)

References 36 publications

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“…Al–Zn–Mg–Cu alloy, renowned for its heat-treatable properties, finds extensive application in aerospace due to its high strength, hot deformation capabilities, and resistance to fatigue 1 – 3 . Current research on this alloy primarily centers on corrosion resistance 4 , spray forming 5 , 6 , heat treatment techniques 7 , 8 , and the microstructure evolution during hot deformation 9 , 10 . However, there's a noticeable gap in the investigation of its hot deformation behavior across a broad temperature range.…”

Section: Introductionmentioning

confidence: 99%

Investigation of deformation behavior and strain-induced precipitations in Al–Zn–Mg–Cu alloys across a wide temperature range

Zhang,

Zuo,

Yang

et al. 2024

Sci Rep

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This study explores the hot deformation behavior of Al–Zn–Mg–Cu alloy through uniaxial hot compression (200 °C–450°C) using the Gleeble-1500. True stress–strain curves were corrected, and three models were established: the Arrhenius model, strain compensated (SC) Arrhenius model, and strain compensated recrystallization temperature (RT) segmentation-based (TS-SC) Arrhenius model. Comparative analysis revealed the limited predictive accuracy of the SC Arrhenius model, with a 25.12% average absolute relative error (AARE), while the TS-SC Arrhenius model exhibited a significantly improved to 9.901% AARE. Material parameter calculations displayed variations across the temperature range. The SC Arrhenius model, utilizing an average slope method for parameter computation, failed to consider temperature-induced disparities, limiting its predictive capability. Hot processing map, utilizing the Murty improved Dynamic Materials Model (DMM), indicated optimal conditions for stable forming of the Al–Zn–Mg–Cu alloy. Microstructural analysis revealed MgZn2 precipitation induced by hot deformation, with crystallographic defects enhancing nucleation rates and precipitate refinement.

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