Investigations of Fatigue and Fracture Behavior of AA 7085

Maity, Rathin; Singh, Akhilendra; Paul, Surajit Kumar

doi:10.1007/s11665-021-05914-x

Cited by 7 publications

(2 citation statements)

References 28 publications

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“…Among 7xxx series aluminum alloy, 7085 alloy possesses an outstanding and advantageous status because of an extra-good corrosion resistance and low quenching sensitivity [ 4 , 5 , 6 ]. Thus, many studies have focused on its microstructure and mechanical properties [ 7 , 8 , 9 , 10 ]. For aluminum alloy components, they frequently operate in coastal regions, with a high salt spray presence, high humidity, and hot atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior and Mechanical Performance of 7085 Aluminum Alloy in a Humid and Hot Marine Atmosphere

Tao¹,

Xiang²,

Zhang³

et al. 2022

Materials

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This work analyzed changes in the corrosion morphology and mechanical performance of 7085 aluminum alloy after outdoor exposures for different times in a humid and hot marine atmospheric environment. After one month of exposure, a pronounced corrosion of the alloy was observed. The corrosion product was mainly Al(OH)3, and the corrosion features were mainly pitting corrosion and intergranular corrosion (IGC). With the exposure time extended from 6 months to 12 months, the IGC depth increased from 114 μm to 190 μm. After a 1-year outdoor exposure in a humid and hot marine environment, the alloy’s ultimate strength and yield stress remained nearly unchanged, while its elongation and area reduction decreased from the original 6% and 9%, respectively, to 3% and 5%. Moreover, the reasons for IGC and its effect on the mechanical performance was analyzed.

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Section: Introductionmentioning

confidence: 99%

Corrosion Behavior and Mechanical Performance of 7085 Aluminum Alloy in a Humid and Hot Marine Atmosphere

Tao¹,

Xiang²,

Zhang³

et al. 2022

Materials

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“…Thus, a comprehensive understanding of the fatigue property of 7085 aluminum alloy is necessary. Several studies have been performed to elucidate the fatigue behavior of 7085 aluminum alloy [12][13][14][15][16]. Burns et al [12] investigated the role of the plate thickness on the fatigue crack growth behavior of 7085 aluminum alloy and found that the increased crack path roughness, tortuosity, and branching in the thicker plate might result from the strain localization/cracking along precipitate-free zones.…”

Section: Introductionmentioning

confidence: 99%

Effects of Actual Marine Atmospheric Pre-Corrosion and Pre-Fatigue on the Fatigue Property of 7085 Aluminum Alloy

Shi

Xiang

Tao

et al. 2022

Metals

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Effects of actual marine atmospheric precorrosion and prefatigue on the fatigue property of 7085-T7452 aluminum alloy were investigated by using the methods of marine atmospheric outdoor exposure tests and constant amplitude axial fatigue tests. Marine atmospheric corrosion morphologies, fatigue life, and fatigue fractography were analyzed. After three months of outdoor exposure, both pitting corrosion and intergranular corrosion (IGC) occurred, while the latter was the dominant marine atmospheric corrosion mode. Marine atmospheric precorrosion could result in a dramatical decrease in the fatigue life of the as-received 7085-T7452 aluminum alloy, while selective prefatigue can improve the total fatigue life of the precorroded specimen. The mechanism of the actual marine atmospheric corrosion and its effects on the fatigue life of the 7085-T7452 aluminum alloy were also discussed.

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Effect of Stress Ratio on Fatigue Life of A356 Aluminium Casting Alloys

Lee

2021

J. of Materi Eng and Perform

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Investigations of Fatigue and Fracture Behavior of AA 7085

Cited by 7 publications

References 28 publications

Corrosion Behavior and Mechanical Performance of 7085 Aluminum Alloy in a Humid and Hot Marine Atmosphere

Corrosion Behavior and Mechanical Performance of 7085 Aluminum Alloy in a Humid and Hot Marine Atmosphere

Effects of Actual Marine Atmospheric Pre-Corrosion and Pre-Fatigue on the Fatigue Property of 7085 Aluminum Alloy

Effect of Stress Ratio on Fatigue Life of A356 Aluminium Casting Alloys

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