In-situ synchrotron GIXRD study of passive film evolution on duplex stainless steel in corrosive environment

Cem Örnek; Marie Långberg; Jonas Evertsson; Gary Harlow; Weronica Linpé; Lisa Rullik; Francesco Carlà; Roberto Felici; Eleonora Bettini; Ulf Kivisäkk; Edvin Lundgren; Jinshan Pan

doi:10.1016/j.corsci.2018.06.040

In-situ synchrotron GIXRD study of passive film evolution on duplex stainless steel in corrosive environment

Cem Örnek, Marie Långberg, Jonas Evertsson, Gary Harlow, Weronica Linpé, Lisa Rullik, Francesco Carlà, Roberto Felici, Eleonora Bettini, Ulf Kivisäkk, Edvin Lundgren, Jinshan Pan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

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.

Original language	English
Pages (from-to)	18-21
Number of pages	4
Journal	Corrosion Science
Volume	141
DOIs	https://doi.org/10.1016/j.corsci.2018.06.040
Publication status	Published - 15 Aug 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

De-alloying
Duplex stainless steel
Grazing-incidence X-ray diffraction (GIXRD)
Oxide film
Passivity
Selective dissolution

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10.1016/j.corsci.2018.06.040

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title = "In-situ synchrotron GIXRD study of passive film evolution on duplex stainless steel in corrosive environment",

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.",

keywords = "De-alloying, Duplex stainless steel, Grazing-incidence X-ray diffraction (GIXRD), Oxide film, Passivity, Selective dissolution",

author = "Cem {\"O}rnek and Marie L{\aa}ngberg and Jonas Evertsson and Gary Harlow and Weronica Linp{\'e} and Lisa Rullik and Francesco Carl{\`a} and Roberto Felici and Eleonora Bettini and Ulf Kivis{\"a}kk and Edvin Lundgren and Jinshan Pan",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = aug,

day = "15",

doi = "10.1016/j.corsci.2018.06.040",

language = "English",

volume = "141",

pages = "18--21",

journal = "Corrosion Science",

issn = "0010-938X",

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TY - JOUR

T1 - In-situ synchrotron GIXRD study of passive film evolution on duplex stainless steel in corrosive environment

AU - Örnek, Cem

AU - Långberg, Marie

AU - Evertsson, Jonas

AU - Harlow, Gary

AU - Linpé, Weronica

AU - Rullik, Lisa

AU - Carlà, Francesco

AU - Felici, Roberto

AU - Bettini, Eleonora

AU - Kivisäkk, Ulf

AU - Lundgren, Edvin

AU - Pan, Jinshan

PY - 2018/8/15

Y1 - 2018/8/15

N2 - 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.

AB - 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.

KW - De-alloying

KW - Duplex stainless steel

KW - Grazing-incidence X-ray diffraction (GIXRD)

KW - Oxide film

KW - Passivity

KW - Selective dissolution

UR - https://www.scopus.com/pages/publications/85049421217

U2 - 10.1016/j.corsci.2018.06.040

DO - 10.1016/j.corsci.2018.06.040

M3 - Article

AN - SCOPUS:85049421217

SN - 0010-938X

VL - 141

SP - 18

EP - 21

JO - Corrosion Science

JF - Corrosion Science

ER -

In-situ synchrotron GIXRD study of passive film evolution on duplex stainless steel in corrosive environment

Abstract

Bibliographical note

Keywords

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