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Corrosion behaviour of heterogeneous antimony-copper layers in chloride media.

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Title: Corrosion behaviour of heterogeneous antimony-copper layers in chloride media.
Authors: Tzaneva, Boriana1 (AUTHOR) borianatz@tu-sofia.bg, Kostov, Vasil1 (AUTHOR)
Source: Corrosion Engineering, Science & Technology. Dec2023, Vol. 58 Issue 8, p677-686. 10p.
Subjects: Antimony, Optical spectroscopy, Copper chlorides, Electrolytic corrosion, Oxide coating, Chemical resistance, Salt
Abstract: The electrodeposited antimony-copper coatings demonstrate a varying degree of chemical and structural heterogeneity that determines their corrosion behaviour in 0.5M sodium chloride. The electrochemical and corrosion properties of layers at open circuit potential were investigated by electrochemical impedance spectroscopy and optical surface observation. Corrosion polarisation tests revealed that anodic behaviour of Sb–Cu alloys is similar for the all tested samples and depends on the antimony chemical resistance. Under anodic polarisation up to about −0.03 VAg/AgCl a multistep process of anodic oxide film transformation was registered. The observations by SEM revealed that at a higher anodic polarisation many submicron-sized pits are formed. The formation of microgalvanic corrosion cells results in preferential dissolution of the antimony phase at both OCP and anodic polarisation. [ABSTRACT FROM AUTHOR]
Copyright of Corrosion Engineering, Science & Technology is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Corrosion behaviour of heterogeneous antimony-copper layers in chloride media.
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  Data: <searchLink fieldCode="AR" term="%22Tzaneva%2C+Boriana%22">Tzaneva, Boriana</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> borianatz@tu-sofia.bg</i><br /><searchLink fieldCode="AR" term="%22Kostov%2C+Vasil%22">Kostov, Vasil</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Corrosion+Engineering%2C+Science+%26+Technology%22">Corrosion Engineering, Science & Technology</searchLink>. Dec2023, Vol. 58 Issue 8, p677-686. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Antimony%22">Antimony</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+spectroscopy%22">Optical spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Copper+chlorides%22">Copper chlorides</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolytic+corrosion%22">Electrolytic corrosion</searchLink><br /><searchLink fieldCode="DE" term="%22Oxide+coating%22">Oxide coating</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+resistance%22">Chemical resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Salt%22">Salt</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The electrodeposited antimony-copper coatings demonstrate a varying degree of chemical and structural heterogeneity that determines their corrosion behaviour in 0.5M sodium chloride. The electrochemical and corrosion properties of layers at open circuit potential were investigated by electrochemical impedance spectroscopy and optical surface observation. Corrosion polarisation tests revealed that anodic behaviour of Sb–Cu alloys is similar for the all tested samples and depends on the antimony chemical resistance. Under anodic polarisation up to about −0.03 VAg/AgCl a multistep process of anodic oxide film transformation was registered. The observations by SEM revealed that at a higher anodic polarisation many submicron-sized pits are formed. The formation of microgalvanic corrosion cells results in preferential dissolution of the antimony phase at both OCP and anodic polarisation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Corrosion Engineering, Science & Technology is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1080/1478422X.2023.2247661
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 10
        StartPage: 677
    Subjects:
      – SubjectFull: Antimony
        Type: general
      – SubjectFull: Optical spectroscopy
        Type: general
      – SubjectFull: Copper chlorides
        Type: general
      – SubjectFull: Electrolytic corrosion
        Type: general
      – SubjectFull: Oxide coating
        Type: general
      – SubjectFull: Chemical resistance
        Type: general
      – SubjectFull: Salt
        Type: general
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      – TitleFull: Corrosion behaviour of heterogeneous antimony-copper layers in chloride media.
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            NameFull: Tzaneva, Boriana
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            NameFull: Kostov, Vasil
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            – D: 01
              M: 12
              Text: Dec2023
              Type: published
              Y: 2023
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            – TitleFull: Corrosion Engineering, Science & Technology
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