In-situ synchrotron GIXRD study of passive film evolution on duplex stainless steel in corrosive environment
(2018) In Corrosion Science 141. p.18-21- Abstract
This paper presents new findings about the passive film formed on super duplex stainless steel in ambient air and corrosive environments, studied by synchrotron grazing-incidence X-ray diffraction (GIXRD). The passive film, formed in air, was seen to be a nano-crystalline mixed-oxide. Electrochemical polarisation to the passive region in aqueous 1 M NaCl at room temperature resulted in an increase of the passive film thickness, preferential dissolution of Fe, and partial loss of crystallinity. After termination of polarization to the transpassive regime, reformation of the mixed-oxides was observed, showing a thicker, semi-crystalline, and more defective nature (more vacancies) with further new oxides/hydroxides.
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https://lup.lub.lu.se/record/5afa9374-5d3f-44d3-89df-5454b3f8b8c8
- author
- organization
- publishing date
- 2018-08-15
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- De-alloying, Duplex stainless steel, Grazing-incidence X-ray diffraction (GIXRD), Oxide film, Passivity, Selective dissolution
- in
- Corrosion Science
- volume
- 141
- pages
- 4 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85049421217
- ISSN
- 0010-938X
- DOI
- 10.1016/j.corsci.2018.06.040
- language
- English
- LU publication?
- yes
- id
- 5afa9374-5d3f-44d3-89df-5454b3f8b8c8
- date added to LUP
- 2018-07-27 12:56:05
- date last changed
- 2022-04-10 00:48:08
@article{5afa9374-5d3f-44d3-89df-5454b3f8b8c8, abstract = {{<p>This paper presents new findings about the passive film formed on super duplex stainless steel in ambient air and corrosive environments, studied by synchrotron grazing-incidence X-ray diffraction (GIXRD). The passive film, formed in air, was seen to be a nano-crystalline mixed-oxide. Electrochemical polarisation to the passive region in aqueous 1 M NaCl at room temperature resulted in an increase of the passive film thickness, preferential dissolution of Fe, and partial loss of crystallinity. After termination of polarization to the transpassive regime, reformation of the mixed-oxides was observed, showing a thicker, semi-crystalline, and more defective nature (more vacancies) with further new oxides/hydroxides.</p>}}, author = {{Örnek, Cem and Långberg, Marie and Evertsson, Jonas and Harlow, Gary and Linpé, Weronica and Rullik, Lisa and Carlà, Francesco and Felici, Roberto and Bettini, Eleonora and Kivisäkk, Ulf and Lundgren, Edvin and Pan, Jinshan}}, issn = {{0010-938X}}, keywords = {{De-alloying; Duplex stainless steel; Grazing-incidence X-ray diffraction (GIXRD); Oxide film; Passivity; Selective dissolution}}, language = {{eng}}, month = {{08}}, pages = {{18--21}}, publisher = {{Elsevier}}, series = {{Corrosion Science}}, title = {{In-situ synchrotron GIXRD study of passive film evolution on duplex stainless steel in corrosive environment}}, url = {{http://dx.doi.org/10.1016/j.corsci.2018.06.040}}, doi = {{10.1016/j.corsci.2018.06.040}}, volume = {{141}}, year = {{2018}}, }