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Corrosion and wear properties of PEO coatings formed on AM60B alloy in NaAlO2 electrolytes

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Title: Corrosion and wear properties of PEO coatings formed on AM60B alloy in NaAlO2 electrolytes
Authors: Li, Xijin1,2, Liu, XingYang1 xingyang.liu@nrc.gc.ca, Luan, Ben Li1
Source: Applied Surface Science. Aug2011, Vol. 257 Issue 21, p9135-9141. 7p.
Subjects: Electrolytic oxidation, Sodium compounds, Magnesium alloys, Surface coatings, Corrosion resistant materials, Plasma gases, X-ray diffraction, Scanning electron microscopy
Abstract: Abstract: Coatings with a thickness of 22–32μm were formed on an AM60B magnesium alloy by plasma electrolytic oxidation (PEO) in electrolytes containing 12.0–24.0g/l NaAlO2 and other additives. SEM analyses of the coated samples showed that the coatings were compact with relatively low porosity. X-ray diffraction revealed that the coatings consisted of mainly MgAl2O4 and MgO phases. The relative amount of MgAl2O4 in the coating increased with increasing NaAlO2 concentration. The relatively compact and thick coatings provide good corrosion protection for magnesium, as indicated by the results of potentiodynamic polarization tests. In addition, the PEO treatment also significantly improved the wear resistance of the alloy. Pin-on-disk wear tests showed that the PEO treatment reduced the wear volume loss by a factor of 10. [Copyright &y& Elsevier]
Copyright of Applied Surface Science is the property of Elsevier B.V. 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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  Label: Title
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  Data: Corrosion and wear properties of PEO coatings formed on AM60B alloy in NaAlO<subscript>2</subscript> electrolytes
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Xijin%22">Li, Xijin</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+XingYang%22">Liu, XingYang</searchLink><relatesTo>1</relatesTo><i> xingyang.liu@nrc.gc.ca</i><br /><searchLink fieldCode="AR" term="%22Luan%2C+Ben+Li%22">Luan, Ben Li</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Surface+Science%22">Applied Surface Science</searchLink>. Aug2011, Vol. 257 Issue 21, p9135-9141. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Electrolytic+oxidation%22">Electrolytic oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Sodium+compounds%22">Sodium compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Magnesium+alloys%22">Magnesium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Corrosion+resistant+materials%22">Corrosion resistant materials</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+gases%22">Plasma gases</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopy%22">Scanning electron microscopy</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Abstract: Coatings with a thickness of 22–32μm were formed on an AM60B magnesium alloy by plasma electrolytic oxidation (PEO) in electrolytes containing 12.0–24.0g/l NaAlO2 and other additives. SEM analyses of the coated samples showed that the coatings were compact with relatively low porosity. X-ray diffraction revealed that the coatings consisted of mainly MgAl2O4 and MgO phases. The relative amount of MgAl2O4 in the coating increased with increasing NaAlO2 concentration. The relatively compact and thick coatings provide good corrosion protection for magnesium, as indicated by the results of potentiodynamic polarization tests. In addition, the PEO treatment also significantly improved the wear resistance of the alloy. Pin-on-disk wear tests showed that the PEO treatment reduced the wear volume loss by a factor of 10. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Applied Surface Science is the property of Elsevier B.V. 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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        Value: 10.1016/j.apsusc.2011.05.115
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      – Code: eng
        Text: English
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      – SubjectFull: Electrolytic oxidation
        Type: general
      – SubjectFull: Sodium compounds
        Type: general
      – SubjectFull: Magnesium alloys
        Type: general
      – SubjectFull: Surface coatings
        Type: general
      – SubjectFull: Corrosion resistant materials
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      – SubjectFull: Plasma gases
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      – SubjectFull: X-ray diffraction
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      – SubjectFull: Scanning electron microscopy
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      – TitleFull: Corrosion and wear properties of PEO coatings formed on AM60B alloy in NaAlO2 electrolytes
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            NameFull: Liu, XingYang
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            NameFull: Luan, Ben Li
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              Text: Aug2011
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