Influence of Zn on the oxide layer on AISI 316L(NG) stainless steel in simulated pressurised water reactor coolant

Iva Betova, Martin Bojinov (Corresponding Author), Petri Kinnunen, Klas Lundgren, Timo Saario

Research output: Contribution to journalArticleScientificpeer-review

31 Citations (Scopus)

Abstract

The oxidation of AISI 316L(NG) stainless steel in simulated pressurised water reactor (PWR) coolant with or without addition of 1 ppm Zn at 280 °C for up to 96 h has been characterised in situ by electrochemical impedance spectroscopy (EIS), both at the corrosion potential and under anodic polarisation up to 0.5 V vs. the reversible hydrogen electrode (RHE). Additional tests were performed in simulated PWR coolant with the addition of 0.01 M Na2B4O7 to exclude the effect of pH excursions probably due to Zn hydrolysis reactions. The thickness and in-depth composition of the oxide films formed at open circuit and at 0.5 V vs. RHE in the investigated electrolytes have been estimated from X-ray photoelectron spectroscopy (XPS) depth profiles. The kinetic and transport parameters characterising the oxide layer growth have been estimated using a calculational procedure based on the mixed conduction model for oxide films. Successful simulations of both the EIS and XPS data have been obtained. The parameter estimates are discussed in terms of the effect of Zn on the oxide layers on stainless steel in PWR conditions.
Original languageEnglish
Pages (from-to)1056-1069
Number of pages14
JournalElectrochimica Acta
Volume54
Issue number3
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

Fingerprint

Pressurized water reactors
Stainless Steel
Coolants
Oxides
Stainless steel
Electrochemical impedance spectroscopy
Oxide films
Hydrogen
X ray photoelectron spectroscopy
Electrodes
Anodic polarization
Electrolytes
Hydrolysis
Corrosion
Oxidation
Kinetics
Networks (circuits)
Chemical analysis

Keywords

  • stainless steel
  • pressurised water reactor coolant
  • oxide film growth
  • zinc incorporation
  • kinetic model

Cite this

@article{3ab7984011b64043a6861e2adfc74ade,
title = "Influence of Zn on the oxide layer on AISI 316L(NG) stainless steel in simulated pressurised water reactor coolant",
abstract = "The oxidation of AISI 316L(NG) stainless steel in simulated pressurised water reactor (PWR) coolant with or without addition of 1 ppm Zn at 280 °C for up to 96 h has been characterised in situ by electrochemical impedance spectroscopy (EIS), both at the corrosion potential and under anodic polarisation up to 0.5 V vs. the reversible hydrogen electrode (RHE). Additional tests were performed in simulated PWR coolant with the addition of 0.01 M Na2B4O7 to exclude the effect of pH excursions probably due to Zn hydrolysis reactions. The thickness and in-depth composition of the oxide films formed at open circuit and at 0.5 V vs. RHE in the investigated electrolytes have been estimated from X-ray photoelectron spectroscopy (XPS) depth profiles. The kinetic and transport parameters characterising the oxide layer growth have been estimated using a calculational procedure based on the mixed conduction model for oxide films. Successful simulations of both the EIS and XPS data have been obtained. The parameter estimates are discussed in terms of the effect of Zn on the oxide layers on stainless steel in PWR conditions.",
keywords = "stainless steel, pressurised water reactor coolant, oxide film growth, zinc incorporation, kinetic model",
author = "Iva Betova and Martin Bojinov and Petri Kinnunen and Klas Lundgren and Timo Saario",
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language = "English",
volume = "54",
pages = "1056--1069",
journal = "Electrochimica Acta",
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Influence of Zn on the oxide layer on AISI 316L(NG) stainless steel in simulated pressurised water reactor coolant. / Betova, Iva; Bojinov, Martin (Corresponding Author); Kinnunen, Petri; Lundgren, Klas; Saario, Timo.

In: Electrochimica Acta, Vol. 54, No. 3, 2009, p. 1056-1069.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Influence of Zn on the oxide layer on AISI 316L(NG) stainless steel in simulated pressurised water reactor coolant

AU - Betova, Iva

AU - Bojinov, Martin

AU - Kinnunen, Petri

AU - Lundgren, Klas

AU - Saario, Timo

N1 - Project code: 6402

PY - 2009

Y1 - 2009

N2 - The oxidation of AISI 316L(NG) stainless steel in simulated pressurised water reactor (PWR) coolant with or without addition of 1 ppm Zn at 280 °C for up to 96 h has been characterised in situ by electrochemical impedance spectroscopy (EIS), both at the corrosion potential and under anodic polarisation up to 0.5 V vs. the reversible hydrogen electrode (RHE). Additional tests were performed in simulated PWR coolant with the addition of 0.01 M Na2B4O7 to exclude the effect of pH excursions probably due to Zn hydrolysis reactions. The thickness and in-depth composition of the oxide films formed at open circuit and at 0.5 V vs. RHE in the investigated electrolytes have been estimated from X-ray photoelectron spectroscopy (XPS) depth profiles. The kinetic and transport parameters characterising the oxide layer growth have been estimated using a calculational procedure based on the mixed conduction model for oxide films. Successful simulations of both the EIS and XPS data have been obtained. The parameter estimates are discussed in terms of the effect of Zn on the oxide layers on stainless steel in PWR conditions.

AB - The oxidation of AISI 316L(NG) stainless steel in simulated pressurised water reactor (PWR) coolant with or without addition of 1 ppm Zn at 280 °C for up to 96 h has been characterised in situ by electrochemical impedance spectroscopy (EIS), both at the corrosion potential and under anodic polarisation up to 0.5 V vs. the reversible hydrogen electrode (RHE). Additional tests were performed in simulated PWR coolant with the addition of 0.01 M Na2B4O7 to exclude the effect of pH excursions probably due to Zn hydrolysis reactions. The thickness and in-depth composition of the oxide films formed at open circuit and at 0.5 V vs. RHE in the investigated electrolytes have been estimated from X-ray photoelectron spectroscopy (XPS) depth profiles. The kinetic and transport parameters characterising the oxide layer growth have been estimated using a calculational procedure based on the mixed conduction model for oxide films. Successful simulations of both the EIS and XPS data have been obtained. The parameter estimates are discussed in terms of the effect of Zn on the oxide layers on stainless steel in PWR conditions.

KW - stainless steel

KW - pressurised water reactor coolant

KW - oxide film growth

KW - zinc incorporation

KW - kinetic model

U2 - 10.1016/j.electacta.2008.08.040

DO - 10.1016/j.electacta.2008.08.040

M3 - Article

VL - 54

SP - 1056

EP - 1069

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

IS - 3

ER -