Effect of heat treatment on microstructure, mechanical properties and corrosion resistance of 7075 aluminum alloys fabricated by improved friction stir additive manufacturing

Liu, Ji; Miao, Yugang; Wu, Ruizhi; Wei, Chao; Zhao, Yuyang; Wu, Yifan; Deng, Qingwen

doi:10.1016/j.jallcom.2024.176512

Journal of Alloys and Compounds

2024

DOI: 10.1016/j.jallcom.2024.176512

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Effect of heat treatment on microstructure, mechanical properties and corrosion resistance of 7075 aluminum alloys fabricated by improved friction stir additive manufacturing

Ji Liu,

Yugang Miao,

Ruizhi Wu

et al.

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Cited by 2 publications

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Corrosion behaviour of advanced composites containing surface modified SIC as reinforcement

Kollabathini,

Dora,

Chintada

2025

Journal of Alloys and Compounds

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Corrosion behaviour of advanced composites containing surface modified SIC as reinforcement

Kollabathini,

Dora,

Chintada

2025

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Analysis of Cracking of 7075 Aluminum Alloy High-Lock Nuts

Cheng,

Ye,

Wang

et al. 2024

Metals

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A 7075 aluminum alloy high-lock nut developed multiple cracks after 3 years of exposure to atmospheric conditions. To identify the root cause of the cracking, a comprehensive analysis was conducted, including chemical composition, macro- and micro-fracture analyses, microstructural analysis, mechanical performance verification, and residual stress testing. The results indicated that stress corrosion was the cause of the fractures. After assembly, the crimping part of the high-lock nuts exhibited significant residual tensile stress and stress concentration, which led to stress corrosion in the industrial atmospheric environment. A comparison of the residual tensile stress in high-lock nuts with wall thicknesses of 0.75 mm, 1.00 mm, and 1.25 mm revealed that the residual tensile stress at the crimping part decreased as the wall thickness increased. Additionally, stress corrosion testing demonstrated that high-lock nuts with a wall thickness of 1.25 mm did not undergo stress corrosion within 30 days.

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Effect of heat treatment on microstructure, mechanical properties and corrosion resistance of 7075 aluminum alloys fabricated by improved friction stir additive manufacturing

Cited by 2 publications

References 46 publications

Corrosion behaviour of advanced composites containing surface modified SIC as reinforcement

Corrosion behaviour of advanced composites containing surface modified SIC as reinforcement

Analysis of Cracking of 7075 Aluminum Alloy High-Lock Nuts

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