Oxidation model for construction materials in supercritical water: Estimation of kinetic and transport parameters

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

doi:10.1016/j.corsci.2015.06.033

Oxidation model for construction materials in supercritical water: Estimation of kinetic and transport parameters

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

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

18 Citations (Scopus)

Abstract

An upgraded model was employed to obtain estimates of kinetic parameters of oxidation of stainless steel Sanicro 28 (UNS N08028) and nickel-based alloy 690 (UNS N06690) in supercritical water at 650. °C/25. MPa up to 2000. h. In the present approach, it is assumed that the growth of the outer layer is governed by the transport of cations through the inner layer via an interstitialcy mechanism. The model is able to reproduce quantitatively the depth profiles of constituent elements oxide layer, as well as in the transition layer situated between the inner layer and the bulk alloy.

Original language	English
Pages (from-to)	36-46
Journal	Corrosion Science
Volume	100
DOIs	https://doi.org/10.1016/j.corsci.2015.06.033
Publication status	Published - 2015
MoE publication type	A1 Journal article-refereed

Keywords

A. Stainless steel
B. Modeling studies
C. High-temperature corrosion

Access to Document

10.1016/j.corsci.2015.06.033

Cite this

@article{675cb14a1f5d4db2bd2485a6e98e5094,

title = "Oxidation model for construction materials in supercritical water: Estimation of kinetic and transport parameters",

abstract = "An upgraded model was employed to obtain estimates of kinetic parameters of oxidation of stainless steel Sanicro 28 (UNS N08028) and nickel-based alloy 690 (UNS N06690) in supercritical water at 650. °C/25. MPa up to 2000. h. In the present approach, it is assumed that the growth of the outer layer is governed by the transport of cations through the inner layer via an interstitialcy mechanism. The model is able to reproduce quantitatively the depth profiles of constituent elements oxide layer, as well as in the transition layer situated between the inner layer and the bulk alloy.",

keywords = "A. Stainless steel, B. Modeling studies, C. High-temperature corrosion",

author = "Sami Penttil{\"a} and Iva Betova and Martin Bojinov and Petri Kinnunen and Aki Toivonen",

year = "2015",

doi = "10.1016/j.corsci.2015.06.033",

language = "English",

volume = "100",

pages = "36--46",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier",

}

TY - JOUR

T1 - Oxidation model for construction materials in supercritical water

T2 - Estimation of kinetic and transport parameters

AU - Penttilä, Sami

AU - Betova, Iva

AU - Bojinov, Martin

AU - Kinnunen, Petri

AU - Toivonen, Aki

PY - 2015

Y1 - 2015

N2 - An upgraded model was employed to obtain estimates of kinetic parameters of oxidation of stainless steel Sanicro 28 (UNS N08028) and nickel-based alloy 690 (UNS N06690) in supercritical water at 650. °C/25. MPa up to 2000. h. In the present approach, it is assumed that the growth of the outer layer is governed by the transport of cations through the inner layer via an interstitialcy mechanism. The model is able to reproduce quantitatively the depth profiles of constituent elements oxide layer, as well as in the transition layer situated between the inner layer and the bulk alloy.

AB - An upgraded model was employed to obtain estimates of kinetic parameters of oxidation of stainless steel Sanicro 28 (UNS N08028) and nickel-based alloy 690 (UNS N06690) in supercritical water at 650. °C/25. MPa up to 2000. h. In the present approach, it is assumed that the growth of the outer layer is governed by the transport of cations through the inner layer via an interstitialcy mechanism. The model is able to reproduce quantitatively the depth profiles of constituent elements oxide layer, as well as in the transition layer situated between the inner layer and the bulk alloy.

KW - A. Stainless steel

KW - B. Modeling studies

KW - C. High-temperature corrosion

U2 - 10.1016/j.corsci.2015.06.033

DO - 10.1016/j.corsci.2015.06.033

M3 - Article

SN - 0010-938X

VL - 100

SP - 36

EP - 46

JO - Corrosion Science

JF - Corrosion Science

ER -

Oxidation model for construction materials in supercritical water: Estimation of kinetic and transport parameters

Abstract

Keywords

Access to Document

Fingerprint

Cite this