Effect of sulphide on the corrosion behaviour of AISI 316L stainless steel and its constituent elements in simulated Kraft digester conditions

I. Betova; M. Bojinov; Outi Hyökyvirta; Timo Saario

doi:10.1016/j.corsci.2009.12.034

Effect of sulphide on the corrosion behaviour of AISI 316L stainless steel and its constituent elements in simulated Kraft digester conditions

I. Betova, M. Bojinov (Corresponding Author), Outi Hyökyvirta, Timo Saario

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

34 Citations (Scopus)

Abstract

The electrochemical behaviour of AISI 316L steel and its constituent metals in simulated Kraft digester white liquor at 170 °C has been studied by registering slow scan rate voltammograms and impedance spectra at the corrosion potential. Interpretation of the results in terms of two approaches – the Mixed-Conduction Model for passive films and a two-step dissolution reaction – allowed for the estimation of corrosion currents and polarisation resistances as depending on the material and electrolyte medium. Tentative conclusions on the effect of sulphur-containing species in the white liquor on the corrosion mechanism of the studied materials are drawn.

Original language	English
Pages (from-to)	1499-1507
Number of pages	9
Journal	Corrosion Science
Volume	52
Issue number	4
DOIs	https://doi.org/10.1016/j.corsci.2009.12.034
Publication status	Published - 2010
MoE publication type	A1 Journal article-refereed

Keywords

Stainless steel
Cyclic voltammetry
EIS
Passive films
Reactor conditions

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abstract = "The electrochemical behaviour of AISI 316L steel and its constituent metals in simulated Kraft digester white liquor at 170 °C has been studied by registering slow scan rate voltammograms and impedance spectra at the corrosion potential. Interpretation of the results in terms of two approaches – the Mixed-Conduction Model for passive films and a two-step dissolution reaction – allowed for the estimation of corrosion currents and polarisation resistances as depending on the material and electrolyte medium. Tentative conclusions on the effect of sulphur-containing species in the white liquor on the corrosion mechanism of the studied materials are drawn.",

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T1 - Effect of sulphide on the corrosion behaviour of AISI 316L stainless steel and its constituent elements in simulated Kraft digester conditions

AU - Betova, I.

AU - Bojinov, M.

AU - Hyökyvirta, Outi

AU - Saario, Timo

PY - 2010

Y1 - 2010

N2 - The electrochemical behaviour of AISI 316L steel and its constituent metals in simulated Kraft digester white liquor at 170 °C has been studied by registering slow scan rate voltammograms and impedance spectra at the corrosion potential. Interpretation of the results in terms of two approaches – the Mixed-Conduction Model for passive films and a two-step dissolution reaction – allowed for the estimation of corrosion currents and polarisation resistances as depending on the material and electrolyte medium. Tentative conclusions on the effect of sulphur-containing species in the white liquor on the corrosion mechanism of the studied materials are drawn.

AB - The electrochemical behaviour of AISI 316L steel and its constituent metals in simulated Kraft digester white liquor at 170 °C has been studied by registering slow scan rate voltammograms and impedance spectra at the corrosion potential. Interpretation of the results in terms of two approaches – the Mixed-Conduction Model for passive films and a two-step dissolution reaction – allowed for the estimation of corrosion currents and polarisation resistances as depending on the material and electrolyte medium. Tentative conclusions on the effect of sulphur-containing species in the white liquor on the corrosion mechanism of the studied materials are drawn.

KW - Stainless steel

KW - Cyclic voltammetry

KW - EIS

KW - Passive films

KW - Reactor conditions

U2 - 10.1016/j.corsci.2009.12.034

DO - 10.1016/j.corsci.2009.12.034

M3 - Article

VL - 52

SP - 1499

EP - 1507

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

IS - 4

ER -