Effects of nitrogen on the passivity of Fe-20Cr alloy
SCIE
SCOPUS
- Title
- Effects of nitrogen on the passivity of Fe-20Cr alloy
- Authors
- Heon-Young Ha; Hee-Jin Jang; Hyuk-Sang Kwon; Kim, S
- Date Issued
- 2009-01
- Publisher
- Elsevier
- Abstract
- Influences of nitrogen on the passivity of Fe-20Cr-(0, 1.1)N alloys were examined by in situ electrochemical techniques. Nitrogen was incorporated in the form of (Fe, Cr)-nitrides in the passive film, and Cr was enriched in the film of the alloy with nitrogen. Photocurrent analysis demonstrated that the structure of passive film formed on Fe-20Cr-1.1N alloy is Cr-substituted gamma-Fe2O3 with (Fe, Cr)-nitrides. Mott-Schottky analysis revealed that the film formed on Fe-20Cr-1.1N contained higher Cr6+ and lower Cr3+ vacancy concentrations compared with that on Fe-20Cr alloy. All of these results were associated with the enhanced protectiveness of the film on Fe-20Cr-1.1N. (c) 2008 Elsevier Ltd. All rights reserved.
- Keywords
- Stainless steel; XPS; Passive films; 8.5 BUFFER SOLUTION; STAINLESS-STEELS; PHOTOELECTROCHEMICAL ANALYSIS; PITTING CORROSION; PASSIVATION; FILMS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/16730
- DOI
- 10.1016/J.CORSCI.2008.10.017
- ISSN
- 0010-938X
- Article Type
- Article
- Citation
- CORROSION SCIENCE, vol. 51, no. 1, page. 48 - 53, 2009-01
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- There are no files associated with this item.
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