Deposition of Oxidation-Resistant Hard Aluminide Layers on Hastelloy C-276: A Study on Microstructural and Kinetic Analysis.
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| Title: | Deposition of Oxidation-Resistant Hard Aluminide Layers on Hastelloy C-276: A Study on Microstructural and Kinetic Analysis. |
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| Authors: | Yener, Tuba1 (AUTHOR), Alaoğlu, Muhammed2,3 (AUTHOR), Atapek, Ş. Hakan4 (AUTHOR) hatapek@kocaeli.edu.tr, Aktaş Çelik, Gülşah4 (AUTHOR), Yener, S. Çağrı5,6 (AUTHOR), Özsoy, Neslihan7 (AUTHOR) |
| Source: | Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ). Feb2026, Vol. 51 Issue 3, p3129-3144. 16p. |
| Subject Terms: | *Protective coatings, *Diffusion control, *Chemical kinetics, *Microstructure, *Activation energy, *Alloys, *Nickel-aluminum alloys, *Surface coatings |
| Abstract: | By aluminizing at varying temperature (600–700 °C) and time (2–6 h) cycles, defect-free, continuous and homogeneous thick Ni–Al deposition layers are obtained on Hastelloy C276 surface. Metallurgical analysis performed on surface/sub-surface indicates that NiAl3 and Ni2Al3 phases are the dominant phases within aluminide coatings (11–41 μm). Since the experimental aluminizing process is a diffusion-controlled process, the processing output with variable temperature and time parameters made it possible to study the process kinetics, and the process-specific activation energy is calculated as 51 kJ/mol. An equation is also derived from the regression model to estimate the coating thickness, and there is a good agreement between the coating thicknesses determined by the experimental and calculated values. The effect of temperature/time on the layer thickness is investigated with variance analysis. Although no significant change in the surface hardness value (~ 800 HV) is measured regardless of the layer thickness, an increase in the layer thickness over time on material surface processed at the lowest temperature causes a significant decrease in the oxidation rate due to the presence of a stable Al-rich oxide. All these findings reveal the lowest cost coating conditions that can reduce the chemical degradation of Hastelloy C276 caused by oxidation at high temperatures. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 192432434 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Deposition of Oxidation-Resistant Hard Aluminide Layers on Hastelloy C-276: A Study on Microstructural and Kinetic Analysis. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Yener%2C+Tuba%22">Yener, Tuba</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alaoğlu%2C+Muhammed%22">Alaoğlu, Muhammed</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Atapek%2C+Ş%2E+Hakan%22">Atapek, Ş. Hakan</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> hatapek@kocaeli.edu.tr</i><br /><searchLink fieldCode="AR" term="%22Aktaş+Çelik%2C+Gülşah%22">Aktaş Çelik, Gülşah</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yener%2C+S%2E+Çağrı%22">Yener, S. Çağrı</searchLink><relatesTo>5,6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Özsoy%2C+Neslihan%22">Özsoy, Neslihan</searchLink><relatesTo>7</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Arabian+Journal+for+Science+%26+Engineering+%28Springer+Science+%26+Business+Media+B%2EV%2E+%29%22">Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. )</searchLink>. Feb2026, Vol. 51 Issue 3, p3129-3144. 16p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Protective+coatings%22">Protective coatings</searchLink><br />*<searchLink fieldCode="DE" term="%22Diffusion+control%22">Diffusion control</searchLink><br />*<searchLink fieldCode="DE" term="%22Chemical+kinetics%22">Chemical kinetics</searchLink><br />*<searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br />*<searchLink fieldCode="DE" term="%22Activation+energy%22">Activation energy</searchLink><br />*<searchLink fieldCode="DE" term="%22Alloys%22">Alloys</searchLink><br />*<searchLink fieldCode="DE" term="%22Nickel-aluminum+alloys%22">Nickel-aluminum alloys</searchLink><br />*<searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: By aluminizing at varying temperature (600–700 °C) and time (2–6 h) cycles, defect-free, continuous and homogeneous thick Ni–Al deposition layers are obtained on Hastelloy C276 surface. Metallurgical analysis performed on surface/sub-surface indicates that NiAl3 and Ni2Al3 phases are the dominant phases within aluminide coatings (11–41 μm). Since the experimental aluminizing process is a diffusion-controlled process, the processing output with variable temperature and time parameters made it possible to study the process kinetics, and the process-specific activation energy is calculated as 51 kJ/mol. An equation is also derived from the regression model to estimate the coating thickness, and there is a good agreement between the coating thicknesses determined by the experimental and calculated values. The effect of temperature/time on the layer thickness is investigated with variance analysis. Although no significant change in the surface hardness value (~ 800 HV) is measured regardless of the layer thickness, an increase in the layer thickness over time on material surface processed at the lowest temperature causes a significant decrease in the oxidation rate due to the presence of a stable Al-rich oxide. All these findings reveal the lowest cost coating conditions that can reduce the chemical degradation of Hastelloy C276 caused by oxidation at high temperatures. [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s13369-025-10210-0 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 3129 Subjects: – SubjectFull: Protective coatings Type: general – SubjectFull: Diffusion control Type: general – SubjectFull: Chemical kinetics Type: general – SubjectFull: Microstructure Type: general – SubjectFull: Activation energy Type: general – SubjectFull: Alloys Type: general – SubjectFull: Nickel-aluminum alloys Type: general – SubjectFull: Surface coatings Type: general Titles: – TitleFull: Deposition of Oxidation-Resistant Hard Aluminide Layers on Hastelloy C-276: A Study on Microstructural and Kinetic Analysis. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Yener, Tuba – PersonEntity: Name: NameFull: Alaoğlu, Muhammed – PersonEntity: Name: NameFull: Atapek, Ş. Hakan – PersonEntity: Name: NameFull: Aktaş Çelik, Gülşah – PersonEntity: Name: NameFull: Yener, S. Çağrı – PersonEntity: Name: NameFull: Özsoy, Neslihan IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 2193567X Numbering: – Type: volume Value: 51 – Type: issue Value: 3 Titles: – TitleFull: Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ) Type: main |
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