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Semenov, A. M.

doi:10.1023/a:1010365803357

Cited by 10 publications

(1 citation statement)

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“…The aim of this generation was to meet the demands of future commercial airframes. This generation has been increasing interest in aerospace applications due to their remarkable lightweight leading to their use in some modern aircraft [11][12][13]. The latest generations of commercial aircraft have been increasing the use of Al-Cu-Li alloys, mainly in applications requiring high specific strength and excellent damage tolerance [10].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Effect of a Chromium-Free Sealing Treatment for the Corrosion Resistance of AA2198-T851 after Tartaric Sulphuric Anodizing (TSA)

Queiroz

Bugarin

Ayusso

et al. 2023

CMD

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The AA 2198-T851 is a third-generation Al-Li alloy developed for use in the aircraft industry. Al-Li alloys are susceptible to localized corrosion due to their complex microstructure resulting from the used thermomechanical treatment. In order to prevent localized corrosion, these alloys are usually protected by anodizing in order to avoid a corrosive environment. Subsequently, for anodizing, a sealing treatment is usually performed for parts. Some sealing treatments use hexavalent-chromium-ion-containing solutions. In this investigation, a chromium-free sealing treatment in a solution with cerium ions has been carried out, and the effect on the corrosion resistance of the AA2198-T851 alloy was investigated. Hydrothermally sealed or unsealed samples were also tested for corrosion resistance for comparison reasons. The corrosion resistance of the anodized aluminum alloy, either hydrothermally sealed or in a cerium-ion-containing solution, was evaluated in a sodium chloride solution by electrochemical impedance spectroscopy as a function of immersion time. The samples sealed in a cerium-containing solution increased their corrosion resistance when compared to the hydrothermally sealed. The effectiveness of the sealing process with cerium that was observed in the electrochemical tests indicated that after the corrosive attack of the barrier layer, there was a “sealing” process of the sample surface.

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Section: Introductionmentioning

confidence: 99%

Investigation on the Effect of a Chromium-Free Sealing Treatment for the Corrosion Resistance of AA2198-T851 after Tartaric Sulphuric Anodizing (TSA)

Queiroz

Bugarin

Ayusso

et al. 2023

CMD

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Corrosion and Stress Corrosion of Aluminum–Lithium Alloys

Holroyd

Scamans

Newman

2014

Aluminum-Lithium Alloys

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2014

Aluminum-Lithium Alloys

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Evaluation of corrosion behaviour of AlÀMgÀLi alloys in sea water. J. Mater. Eng. Perform. 5, 235À240. Ahmadi, S., Arabi, H., Shokuhfar, A., 2010. Effects of multiple strengthening treatments on mechanical properties and stability of nanoscale precipitated phases in an alumi-numÀcopperÀlithium alloy. J. Mater. Sci. Technol. 26, 1078À1082. Ahmed, M., 1987, Correlation between aging heat treatments, microstructure and stress corrosion properties of AlÀLiÀCuÀMg alloys.

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Cited by 10 publications

References 1 publication

Investigation on the Effect of a Chromium-Free Sealing Treatment for the Corrosion Resistance of AA2198-T851 after Tartaric Sulphuric Anodizing (TSA)

Investigation on the Effect of a Chromium-Free Sealing Treatment for the Corrosion Resistance of AA2198-T851 after Tartaric Sulphuric Anodizing (TSA)

Corrosion and Stress Corrosion of Aluminum–Lithium Alloys

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