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Electrochemical pro...
Electrochemical properties of corrosion products formed on Zn-Mg, Zn-Al and Zn-Al-Mg coatings in model atmospheric conditions
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- Stoulil, Jan (author)
- Institute of Chemical Technology, Czech Republic
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- Prosek, Tomas (author)
- RISE,KIMAB,Institut de la Corrosion
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- Nazarov, Andrej (author)
- RISE,KIMAB,Institut de la Corrosion
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- Oswald, Jiri (author)
- Czech Academy of Science, Czech Republic
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- Kriz, P. (author)
- University of South Bohemia, Czech Republic
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- Thierry, Dominique (author)
- RISE,KIMAB,Institut de la Corrosion
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(creator_code:org_t)
- 2015-02-16
- 2015
- English.
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In: Materials and corrosion - Werkstoffe und Korrosion. - : Wiley-VCH Verlag. - 0947-5117 .- 1521-4176. ; 66:8, s. 777-782
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https://doi.org/10.1...
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Abstract
Subject headings
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- The electrochemical properties of corrosion products formed under sodium chloride deposits on zinc coatings alloyed with aluminium and magnesium have been studied using impedance spectroscopy (EIS), scanning Kelvin probe (SKP) and photoluminescence (PL) techniques. The low-energy band gap identified in corrosion products on hot-dip galvanized steel was associated with their higher electric conductivity and efficiency of the rate-controlling oxygen reduction reaction. It was attributed to the presence of ZnO, zincite. The formation of ZnO was hindered by the alloying. The alloyed coatings were covered by more compact layers of corrosion products with lower electric conductivity and better barrier properties.
Keyword
- atmospheric corrosion
- impedance spectroscopy
- kelvin probe
- photoluminescence
- Zn-Al-Mg coating
- Aluminum coatings
- Coatings
- Corrosion
- Electric conductivity
- Electric conductivity measurement
- Electrochemical impedance spectroscopy
- Electrochemical properties
- Electrolytic reduction
- Energy gap
- Galvanizing
- Magnesium deposits
- Probes
- Sodium deposits
- Spectroscopy
- Zinc
- Zinc alloys
- Zinc chloride
- Zinc coatings
- Zinc oxide
- Atmospheric conditions
- Barrier properties
- Corrosion products
- Hot dip galvanized steels
- Oxygen reduction reaction
- Scanning Kelvin probes
- Aluminum
Publication and Content Type
- ref (subject category)
- art (subject category)
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