Corrosion Fatigue Study of 6061 Aluminum Alloy: The Effect of Coatings on the Fatigue Characteristics

Chanyathunyaroj, Kittisak; Moonrin, N.; Laungsopapun, Ghit; Phetchcrai, Sompob

doi:10.1007/s11661-022-06712-3

Cited by 3 publications

(1 citation statement)

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“…All of these parameters affect the CF performance of Al-Mg-Si alloys. Chanyathunyaroj et al [112,113] showed that the fatigue life of extruded aluminum alloy 6061 reduced by 50% during the rotational bending test with dripping salt water (Figure 12). The authors state that a 3.5% NaCl solution causes corrosion pits on the alloy surface acting as crack nucleation sites.…”

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

confidence: 99%

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: 99%