Oxidation parameters of oxide dispersion-strengthened steels in supercritical water

Sami Penttilä, Iva Betova, Martin Bojinov, Petri Kinnunen, Aki Toivonen

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

The kinetic parameters of oxidation of two oxide dispersion strengthened (ODS) alloys, PM2000 and MA956, in supercritical water (SCW) are evaluated using an updated model that assumes that the growth of the outer layer is governed by the transport of interstitial cations through the inner layer. The model is able to reproduce quantitatively the depth profiles of individual constituent elements in the inner and outer layers, as well as in the diffusion/transition layer of the alloy between the inner layer and the bulk substrate. The rate constants and diffusion coefficients decrease with time, indicating oxide layer restructuring.
Original languageEnglish
Article number011017
Number of pages8
JournalJournal of Nuclear Engineering and Radiation Science
Volume2
Issue number1
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

steels
Oxidation
oxidation
Oxides
oxides
Steel
Kinetic parameters
water
Water
Rate constants
Positive ions
Substrates
transition layers
interstitials
diffusion coefficient
cations
kinetics
coefficients
profiles

Keywords

  • diffusion
  • alloys
  • steel
  • oxidation
  • water
  • corrosion

Cite this

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title = "Oxidation parameters of oxide dispersion-strengthened steels in supercritical water",
abstract = "The kinetic parameters of oxidation of two oxide dispersion strengthened (ODS) alloys, PM2000 and MA956, in supercritical water (SCW) are evaluated using an updated model that assumes that the growth of the outer layer is governed by the transport of interstitial cations through the inner layer. The model is able to reproduce quantitatively the depth profiles of individual constituent elements in the inner and outer layers, as well as in the diffusion/transition layer of the alloy between the inner layer and the bulk substrate. The rate constants and diffusion coefficients decrease with time, indicating oxide layer restructuring.",
keywords = "diffusion, alloys, steel, oxidation, water, corrosion",
author = "Sami Penttil{\"a} and Iva Betova and Martin Bojinov and Petri Kinnunen and Aki Toivonen",
year = "2016",
doi = "10.1115/1.4031127",
language = "English",
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journal = "Journal of Nuclear Engineering and Radiation Science",
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publisher = "American Society of Mechanical Engineers ASME",
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Oxidation parameters of oxide dispersion-strengthened steels in supercritical water. / Penttilä, Sami; Betova, Iva; Bojinov, Martin; Kinnunen, Petri; Toivonen, Aki.

In: Journal of Nuclear Engineering and Radiation Science, Vol. 2, No. 1, 011017, 2016.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Oxidation parameters of oxide dispersion-strengthened steels in supercritical water

AU - Penttilä, Sami

AU - Betova, Iva

AU - Bojinov, Martin

AU - Kinnunen, Petri

AU - Toivonen, Aki

PY - 2016

Y1 - 2016

N2 - The kinetic parameters of oxidation of two oxide dispersion strengthened (ODS) alloys, PM2000 and MA956, in supercritical water (SCW) are evaluated using an updated model that assumes that the growth of the outer layer is governed by the transport of interstitial cations through the inner layer. The model is able to reproduce quantitatively the depth profiles of individual constituent elements in the inner and outer layers, as well as in the diffusion/transition layer of the alloy between the inner layer and the bulk substrate. The rate constants and diffusion coefficients decrease with time, indicating oxide layer restructuring.

AB - The kinetic parameters of oxidation of two oxide dispersion strengthened (ODS) alloys, PM2000 and MA956, in supercritical water (SCW) are evaluated using an updated model that assumes that the growth of the outer layer is governed by the transport of interstitial cations through the inner layer. The model is able to reproduce quantitatively the depth profiles of individual constituent elements in the inner and outer layers, as well as in the diffusion/transition layer of the alloy between the inner layer and the bulk substrate. The rate constants and diffusion coefficients decrease with time, indicating oxide layer restructuring.

KW - diffusion

KW - alloys

KW - steel

KW - oxidation

KW - water

KW - corrosion

U2 - 10.1115/1.4031127

DO - 10.1115/1.4031127

M3 - Article

VL - 2

JO - Journal of Nuclear Engineering and Radiation Science

JF - Journal of Nuclear Engineering and Radiation Science

SN - 2332-8983

IS - 1

M1 - 011017

ER -