Stability of Chromia (Cr²O³)-Based Scales Formed During Corrosion of Austenitic Fe-Cr-Ni Alloys in Flowing Oxygenated Supercritical Water.
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| Title: | Stability of Chromia (Cr²O³)-Based Scales Formed During Corrosion of Austenitic Fe-Cr-Ni Alloys in Flowing Oxygenated Supercritical Water. |
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| Authors: | Mahboubi, S.1 mahbos@mcmaster.ca, Jiao, Y.1, Cook, W.2, Zheng, W.3, Guzonas, D. A.4, Botton, G. A.1, Kish, J. R.1 |
| Source: | Corrosion. Sep2016, Vol. 72 Issue 9, p1170-1180. 11p. |
| Abstract: | The comparative corrosion resistance of two high-chromium austenitic Fe-Cr-Ni alloys, namely Type 310S stainless steel (UNS S31008) and Alloy 33 (UNS R20033), was examined after exposure in supercritical water (25 MPa and 550°C), using a flow-loop autoclave testing facility operated at a flow rate of 200 mL/min. Electron microscopy techniques were used to determine links between the composition and structure of the Cr²O³-based oxide scale formed on both alloys and the difference in corrosion resistance observed. The weight change kinetics was distinctly different: progressively positive (weight gain) for Type 310S stainless steel and progressively negative (weight loss) for Alloy 33. The descaled weight loss was lower for Alloy 33, indicating improved corrosion resistance. This improved corrosion resistance was attributed to the improved stability of the Cr²O³-based scale that formed on Alloy 33 despite the negative weight change kinetics. The suitability of these alloys as candidate fuel cladding for the Generation IV supercritical water-cooled reactor concept is discussed in light of the findings presented. [ABSTRACT FROM AUTHOR] |
| Copyright of Corrosion is the property of Association for Materials Protection & Performance (AMPP) 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 117454546 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Stability of Chromia (Cr²O³)-Based Scales Formed During Corrosion of Austenitic Fe-Cr-Ni Alloys in Flowing Oxygenated Supercritical Water. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mahboubi%2C+S%2E%22">Mahboubi, S.</searchLink><relatesTo>1</relatesTo><i> mahbos@mcmaster.ca</i><br /><searchLink fieldCode="AR" term="%22Jiao%2C+Y%2E%22">Jiao, Y.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cook%2C+W%2E%22">Cook, W.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zheng%2C+W%2E%22">Zheng, W.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Guzonas%2C+D%2E+A%2E%22">Guzonas, D. A.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Botton%2C+G%2E+A%2E%22">Botton, G. A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kish%2C+J%2E+R%2E%22">Kish, J. R.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Corrosion%22">Corrosion</searchLink>. Sep2016, Vol. 72 Issue 9, p1170-1180. 11p. – Name: Abstract Label: Abstract Group: Ab Data: The comparative corrosion resistance of two high-chromium austenitic Fe-Cr-Ni alloys, namely Type 310S stainless steel (UNS S31008) and Alloy 33 (UNS R20033), was examined after exposure in supercritical water (25 MPa and 550°C), using a flow-loop autoclave testing facility operated at a flow rate of 200 mL/min. Electron microscopy techniques were used to determine links between the composition and structure of the Cr²O³-based oxide scale formed on both alloys and the difference in corrosion resistance observed. The weight change kinetics was distinctly different: progressively positive (weight gain) for Type 310S stainless steel and progressively negative (weight loss) for Alloy 33. The descaled weight loss was lower for Alloy 33, indicating improved corrosion resistance. This improved corrosion resistance was attributed to the improved stability of the Cr²O³-based scale that formed on Alloy 33 despite the negative weight change kinetics. The suitability of these alloys as candidate fuel cladding for the Generation IV supercritical water-cooled reactor concept is discussed in light of the findings presented. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Corrosion is the property of Association for Materials Protection & Performance (AMPP) 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: BibEntity: Identifiers: – Type: doi Value: 10.5006/1982 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 1170 Titles: – TitleFull: Stability of Chromia (Cr²O³)-Based Scales Formed During Corrosion of Austenitic Fe-Cr-Ni Alloys in Flowing Oxygenated Supercritical Water. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mahboubi, S. – PersonEntity: Name: NameFull: Jiao, Y. – PersonEntity: Name: NameFull: Cook, W. – PersonEntity: Name: NameFull: Zheng, W. – PersonEntity: Name: NameFull: Guzonas, D. A. – PersonEntity: Name: NameFull: Botton, G. A. – PersonEntity: Name: NameFull: Kish, J. R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 00109312 Numbering: – Type: volume Value: 72 – Type: issue Value: 9 Titles: – TitleFull: Corrosion Type: main |
| ResultId | 1 |
