Effect of pre-deformation on the pre-corrosion multiaxial fatigue behaviors of 2024-T4 aluminum alloy

Effect of pre-deformation on the pre-corrosion multiaxial fatigue behaviors of 2024-T4 aluminum... International Journal of Fatigue 108 (2018) 35–46 Contents lists available at ScienceDirect International Journal of Fatigue journal homepage: www.elsevier.com/locate/ijfatigue Effect of pre-deformation on the pre-corrosion multiaxial fatigue behaviors of 2024-T4 aluminum alloy Yajun Chen , Jian Zhou, Chenchen Liu, Fusheng Wang Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China ARTICLE I NFO ABSTRACT Keywords: Pre-damages which contain pre-deformation and pre-corrosion have influences on multiaxial fatigue properties. 2024-T4 aluminum alloy In this paper, the effect of pre-tension of 1%, 2%, 3% and 4% as well as pre-torsion of 10°, 20°, 30° and 40° on Multiaxial fatigue fatigue life of 2024-T4 aluminum alloy under corrosion conditions is evaluated. Multiaxial fatigue tests are Pre-deformation performed under constant amplitude sinusoidal wave loading with tension-torsion ratio of 3 in air at room Pre-corrosion temperature. The results indicate a reduction tendency of pre-corrosion multiaxial fatigue life with the pre- Life prediction deformation level in the same pre-corrosion time. With the same pre-deformation level, the pre-corrosion multiaxial fatigue life decreases as pre-corrosion time increases. Pitting caused by corrosion is observed on the surface of specimens. The observed mechanical behavior and associated phenomena are directly linked to mi- crostructure characteristics such as http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Fatigue Elsevier

Effect of pre-deformation on the pre-corrosion multiaxial fatigue behaviors of 2024-T4 aluminum alloy

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier Ltd
ISSN
0142-1123
eISSN
1879-3452
D.O.I.
10.1016/j.ijfatigue.2017.11.008
Publisher site
See Article on Publisher Site

Abstract

International Journal of Fatigue 108 (2018) 35–46 Contents lists available at ScienceDirect International Journal of Fatigue journal homepage: www.elsevier.com/locate/ijfatigue Effect of pre-deformation on the pre-corrosion multiaxial fatigue behaviors of 2024-T4 aluminum alloy Yajun Chen , Jian Zhou, Chenchen Liu, Fusheng Wang Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China ARTICLE I NFO ABSTRACT Keywords: Pre-damages which contain pre-deformation and pre-corrosion have influences on multiaxial fatigue properties. 2024-T4 aluminum alloy In this paper, the effect of pre-tension of 1%, 2%, 3% and 4% as well as pre-torsion of 10°, 20°, 30° and 40° on Multiaxial fatigue fatigue life of 2024-T4 aluminum alloy under corrosion conditions is evaluated. Multiaxial fatigue tests are Pre-deformation performed under constant amplitude sinusoidal wave loading with tension-torsion ratio of 3 in air at room Pre-corrosion temperature. The results indicate a reduction tendency of pre-corrosion multiaxial fatigue life with the pre- Life prediction deformation level in the same pre-corrosion time. With the same pre-deformation level, the pre-corrosion multiaxial fatigue life decreases as pre-corrosion time increases. Pitting caused by corrosion is observed on the surface of specimens. The observed mechanical behavior and associated phenomena are directly linked to mi- crostructure characteristics such as

Journal

International Journal of FatigueElsevier

Published: Mar 1, 2018

References

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