Influence of corrosion fatigue on the stress gradient effect of the aluminium alloy EN AW-6082 T6

Schönowitz, Markus; Maier, Bernd; Grün, Florian

doi:10.1016/j.ijfatigue.2024.108322

Cited by 1 publication

(1 citation statement)

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“…It was also shown that a test frequency increase from 25 to 100 Hz did not have any effect on the material fatigue life. More recent studies [119,120] also showed the detrimental effect of the environment on the fatigue life of 6082 aluminum alloy.…”

Section: Corrosion Fatigue Of Al-mg-si-(cu) Alloysmentioning

confidence: 96%

Review on Environmentally Assisted Static and Fatigue Cracking of Al-Mg-Si-(Cu) Alloys

Avramenko,

Michel,

Kollender

et al. 2024

Metals

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This paper reviews the relevant literature and covers the main aspects of the environmentally assisted cracking of Al-Mg-Si-(Cu) alloys. Apart from a brief overview of the major microstructural and mechanical properties, it presents research results on the corrosion sensitivity and stress corrosion susceptibility of Al-Mg-Si alloys. Possible mechanisms of stress corrosion cracking and corrosion fatigue in aluminum alloys, such as anodic dissolution and/or interaction with hydrogen, are considered. A number of factors, including atmospheric or solution conditions, applied stress, and material properties, can affect these mechanisms, leading to environmentally assisted cracking. Specific attention is given to Al-Mg-Si alloys with copper, which may increase the sensitivity to intergranular corrosion. The susceptibility to both intergranular corrosion and stress corrosion cracking of Cu-containing Al-Mg-Si alloys is mostly associated with a very thin layer (segregation) of Cu on the grain boundaries. However, the effect of Cu on the corrosion fatigue and fatigue crack growth rate of Al-Mg-Si alloys has received limited attention in the literature. At the current state of the research, it has not yet been holistically assessed, although a few studies have shown that a certain content of copper can improve the resistance of aluminum alloys to the environment with regard to corrosion fatigue. Furthermore, considerations of the synergistic actions of various factors remain essential for further studying environmentally assisted cracking phenomena in aluminum alloys.

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Section: Corrosion Fatigue Of Al-mg-si-(cu) Alloysmentioning

confidence: 96%