In-situ electrochemical analytical effect of aging treatment on stress corrosion behavior of Al–Zn–Mg–Cu aluminum alloy

Guo, Fuqiang; Duan, Shuwei; Pan, Yuzhe; Wu, Dongting; Matsuda, Kenji; Wang, Tao; Zou, Yong

doi:10.1016/j.jmrt.2023.02.130

Cited by 17 publications

(2 citation statements)

References 38 publications

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“…In our previous work, it has been proven that the adding AA7xxx interlayer can provide sacrificial protection to the core (Wang et al, 2024;Liu et al, 2024). As a heat-treatable alloy, the addition of AA7xxx also provides the possibility of improving the strength of the sheet (Guo et al, 2023). Thus, in this study, AA7xxx alloy was added to conventional brazed sheets to form a novel sheet with AA4xxx/AA7xxx/AA3xxx structure.…”

Section: Introductionmentioning

confidence: 99%

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Effect of brazing and artificial aging on the corrosion and strengthening behavior of a quad-layer Al alloy composite

Zhou,

Xia,

Gao

et al. 2024

ACMM

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Purpose This study aims to investigate the influence mechanism of brazing and aging on the strengthening and corrosion behavior of novel multilayer sheets (AA4045/AA7072/AA3003M/AA4045). Design/methodology/approach Polarization curve tests, immersion experiments and transmission electron microscopy analysis were used to study the corrosion behavior and tensile properties of the sheets before and after brazing and aging. Findings The strength of the sheet is weakened after brazing due to brittle eutectic phases, and recovered after aging due to enhanced precipitation strengthening in the AA7072 interlayer. The core of nonbrazed sheets cannot be protected due to the significant galvanic coupling effect between the intermetallic particles and the substrate. Brazing and aging treatments promote the redissolved of second phased and limit corrosion along the eutectic region in the clad, allowing the core to be protected. Originality/value AA7xxx alloy was added to conventional brazed sheets to form a novel Al alloy composite sheet with AA4xxx/AA7xxx/AA3xxx structure. The strengthening and corrosion mechanism of the sheet was proposed. The added interlayer can sacrificially protect the core from corrosion and improves strength after aging treatment.

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Section: Introductionmentioning

confidence: 99%

“…, 2024). As a heat-treatable alloy, the addition of AA7xxx also provides the possibility of improving the strength of the sheet (Guo et al. , 2023).…”

Section: Introductionmentioning

confidence: 99%