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Comparison of hot corrosion behavior of Ti6Al4V and TiAlN-coated Ti6Al4V alloys in Na2SO4 -V2O5 environment.

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Title: Comparison of hot corrosion behavior of Ti6Al4V and TiAlN-coated Ti6Al4V alloys in Na2SO4 -V2O5 environment.
Authors: Ceper, Burak1 (AUTHOR) ceperburak@gantep.edu.tr, Ozgurluk, Ozge2,3 (AUTHOR), Calıs, Ibrahim4 (AUTHOR), Sunbul, Sefa Emre1 (AUTHOR), Ozgurluk, Yasin5 (AUTHOR), Tuncay, Mehmet Masum6 (AUTHOR)
Source: Surface & Coatings Technology. Mar2026, Vol. 523, pN.PAG-N.PAG. 1p.
Subjects: Corrosion resistance, Titanium alloys, High temperatures, Surface coatings, Oxidation, Aerospace materials, Corrosion engineering, Sodium sulfate
Abstract: Damage mechanisms such as oxidation and hot corrosion, which shorten life of the materials and system efficiency, occur in systems operating at high temperatures in the aviation, aerospace, automotive, and defense industries. In this study, Ti6Al4V and TiAlN-coated Ti6Al4V alloys, which have high specific strength and corrosion resistance, were subjected to isothermal hot corrosion tests at 900 °C in the presence of 45% Na 2 SO 4 and 55% V 2 O 5 hot corrosion salts for 1, 3, 5, and 10 h under open-to-atmosphere conditions. The changing phase, microstructure, and elemental distribution of the alloys were determined using advanced characterization techniques such as SEM, EDS, and XRD. Systems with a TiAlN coating layer were found to be more durable in short- and medium-term corrosive environments compared to the Ti6Al4V alloy. • TiAlN coatings were deposited on Ti6Al4V to assess hot corrosion resistance in Na 2 SO 4 –V 2 O 5 at 900 °C. • TiAlN acted as an effective diffusion barrier, reducing oxide scale growth and molten salt penetration. • Coated samples showed more stable oxides and improved surface integrity compared to uncoated Ti6Al4V. • TiAlN coatings significantly enhanced high-temperature corrosion resistance despite localized oxide formation. [ABSTRACT FROM AUTHOR]
Copyright of Surface & Coatings Technology 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.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 191382938
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Comparison of hot corrosion behavior of Ti6Al4V and TiAlN-coated Ti6Al4V alloys in Na2SO4 -V2O5 environment.
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  Data: <searchLink fieldCode="AR" term="%22Ceper%2C+Burak%22">Ceper, Burak</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ceperburak@gantep.edu.tr</i><br /><searchLink fieldCode="AR" term="%22Ozgurluk%2C+Ozge%22">Ozgurluk, Ozge</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Calıs%2C+Ibrahim%22">Calıs, Ibrahim</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sunbul%2C+Sefa+Emre%22">Sunbul, Sefa Emre</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ozgurluk%2C+Yasin%22">Ozgurluk, Yasin</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tuncay%2C+Mehmet+Masum%22">Tuncay, Mehmet Masum</searchLink><relatesTo>6</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Surface+%26+Coatings+Technology%22">Surface & Coatings Technology</searchLink>. Mar2026, Vol. 523, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Corrosion+resistance%22">Corrosion resistance</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium+alloys%22">Titanium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22High+temperatures%22">High temperatures</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Aerospace+materials%22">Aerospace materials</searchLink><br /><searchLink fieldCode="DE" term="%22Corrosion+engineering%22">Corrosion engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Sodium+sulfate%22">Sodium sulfate</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Damage mechanisms such as oxidation and hot corrosion, which shorten life of the materials and system efficiency, occur in systems operating at high temperatures in the aviation, aerospace, automotive, and defense industries. In this study, Ti6Al4V and TiAlN-coated Ti6Al4V alloys, which have high specific strength and corrosion resistance, were subjected to isothermal hot corrosion tests at 900 °C in the presence of 45% Na 2 SO 4 and 55% V 2 O 5 hot corrosion salts for 1, 3, 5, and 10 h under open-to-atmosphere conditions. The changing phase, microstructure, and elemental distribution of the alloys were determined using advanced characterization techniques such as SEM, EDS, and XRD. Systems with a TiAlN coating layer were found to be more durable in short- and medium-term corrosive environments compared to the Ti6Al4V alloy. • TiAlN coatings were deposited on Ti6Al4V to assess hot corrosion resistance in Na 2 SO 4 –V 2 O 5 at 900 °C. • TiAlN acted as an effective diffusion barrier, reducing oxide scale growth and molten salt penetration. • Coated samples showed more stable oxides and improved surface integrity compared to uncoated Ti6Al4V. • TiAlN coatings significantly enhanced high-temperature corrosion resistance despite localized oxide formation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Surface & Coatings Technology 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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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.surfcoat.2026.133246
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 1
        StartPage: N.PAG
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      – SubjectFull: Corrosion resistance
        Type: general
      – SubjectFull: Titanium alloys
        Type: general
      – SubjectFull: High temperatures
        Type: general
      – SubjectFull: Surface coatings
        Type: general
      – SubjectFull: Oxidation
        Type: general
      – SubjectFull: Aerospace materials
        Type: general
      – SubjectFull: Corrosion engineering
        Type: general
      – SubjectFull: Sodium sulfate
        Type: general
    Titles:
      – TitleFull: Comparison of hot corrosion behavior of Ti6Al4V and TiAlN-coated Ti6Al4V alloys in Na2SO4 -V2O5 environment.
        Type: main
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            NameFull: Ceper, Burak
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            NameFull: Ozgurluk, Ozge
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            NameFull: Calıs, Ibrahim
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          Dates:
            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 02578972
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              Value: 523
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            – TitleFull: Surface & Coatings Technology
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