Composite Protective Coatings on Nitinol Surface

Гнеденков, С. В.; Khrisanfova, O. A.; Sinebryukhov, Sergey L.; Puz, A. V.; Gnedenkov, Andrey S.

doi:10.1080/10426910802385117

Cited by 28 publications

(13 citation statements)

References 10 publications

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“…As will be further described, the bare 1579 Al alloy system with a welded joint possesses high corrosion activity. To increase the protective properties of this system to be used in various fields of industry, Part 2 of this work is dedicated to the formation and study of the protective coatings based on the plasma electrolytic oxidation (PEO) [ 37 , 38 , 39 , 40 ] using SVET and SIET, as well as global traditional electrochemical techniques such as electrochemical impedance spectroscopy and potentiodynamic polarization.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of the Welded Aluminium Alloy in 0.5 M NaCl Solution. Part 1: Specificity of Development

et al. 2018

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This work consists of two parts. In the first part, the kinetics and mechanism of corrosion on the surface of the welded joint area of the aircraft 1579 aluminium alloy have been studied using SVET (scanning vibrating electrode technique) and SIET (scanning ion-selective electrode technique) in 0.5 M NaCl. The results have revealed the corrosion process development within the weld interface due to the presence of microdefects in the morphological structure. Features of the 1579 Al alloy corrosion have also been investigated through immersion experiments, quantitative analysis of dissolved alloying elements by means of atomic absorption spectroscopy, and corrosion products characterization using XRD (X-ray diffraction) analysis. The presence of Mg as an alloying element in the 1579 Al alloy sufficiently increases the bulk pH values as a result of the intensive dissolution of Mg. These factors accelerate the corrosion activity of the studied material in the 0.5 M NaCl solution. Corrosion evolution analysis of the 1579 Al alloy sample showed the importance of the coating formation to protect this alloy against corrosion and to increase the stability of this system in the corrosive media.

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Section: Introductionmentioning

confidence: 99%

Corrosion of the Welded Aluminium Alloy in 0.5 M NaCl Solution. Part 1: Specificity of Development

et al. 2018

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“…Jiang et al formed thick epoxy coatings (~100 ± 10 μm) on AA2024 aluminium alloy [2,3]. Among the methods of protective coating formation on the surface of Al alloys, one of the most promising methods is plasma electrolytic oxidation [5,6,7,8,9,10,11,12,13,14,15]. Serdechnova et al grew layered double hydroxides on PEO-pretreated AA2024 Al alloy [6].…”

Section: Introductionmentioning

confidence: 99%

Corrosion of the Welded Aluminium Alloy in 0.5 M NaCl Solution. Part 2: Coating Protection

et al. 2018

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The high electrochemical activity of the aircraft 1579 aluminium alloy with a welded joint and the necessity of the coating formation to protect this material against corrosion as well as to increase the stability of the weld interface in the corrosive medium has been previously established. In this work, two suggested methods of protective coating formation based on plasma electrolytic oxidation (PEO) in tartrate-fluoride electrolyte significantly increased the protective properties of the welded joint area of the 1579 Al alloy. The electrochemical properties of the formed surface layers have been investigated using SVET (scanning vibrating electrode technique) and SIET (scanning ion-selective electrode technique), EIS (electrochemical impedance spectroscopy), OCP (open circuit potential), and PDP (potentiodynamic polarization) in 0.5 M NaCl. The less expressed character of the local electrochemical processes on the welded 1579 Al alloy with the composite coating in comparison with the base PEO-layer has been established. Polymer-containing coatings obtained using superdispersed polytetrafluoroethylene (SPTFE) treatment are characterized by the best possible protective properties and prevent the material from corrosion destruction. Single SPTFE treatment enables one to increase PEO-layer protection by 5.5 times. The results of this study indicate that SVET and SIET are promising to characterize and to compare corrosion behaviour of coated and uncoated samples with a welded joint in chloride-containing media.

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“…Например, формируются толстые эпоксидные покрытия (~100 ± 10 мкм) на алюминиевом сплаве AA2024 [824,825]. Для создания защитных покрытий на алюминиевых сплавах активно используется плазменное электролитическое оксидирование [49,81,86,88,145,543,544,552,[827][828][829][830][831][832]. Получены ПЭО-слои на алюминиевых композитах в силикатно-щелочном электролите при переменнотоковом режиме оксидирования [831].…”

Section: антикоррозионные покрытия для алюминиевых сплавов и их сварн...unclassified

Влияние Структурной Гетерогенности На Коррозионное Поведение Алюминиевых Сплавов И Их Сварных Соединений

2022

Физико-Химические Основы Локальной Гетерогенной Коррозии Магниевых И Алюминиевых Сплавов

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Composite Protective Coatings on Nitinol Surface

Cited by 28 publications

References 10 publications

Corrosion of the Welded Aluminium Alloy in 0.5 M NaCl Solution. Part 1: Specificity of Development

Corrosion of the Welded Aluminium Alloy in 0.5 M NaCl Solution. Part 1: Specificity of Development

Corrosion of the Welded Aluminium Alloy in 0.5 M NaCl Solution. Part 2: Coating Protection

Влияние Структурной Гетерогенности На Коррозионное Поведение Алюминиевых Сплавов И Их Сварных Соединений

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