Characterisation of material behaviour in high temperature aqueous environments by means of electrochemical techniques

Martin Bojinov; Timo Laitinen; Kari Mäkelä; Timo Saario; Pekka Sirkiä; Björn Beverskog

Characterisation of material behaviour in high temperature aqueous environments by means of electrochemical techniques

Martin Bojinov, Timo Laitinen, Kari Mäkelä, Timo Saario, Pekka Sirkiä, Björn Beverskog

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Professional

Abstract

Electrochemical measurements in solutions simulating power plant coolants are complicated by the low conductivity of the water, especially in the case of boiling water reactor (BWR) environments. To be able to obtain useful information also in BWR conditions, electrochemical techniques based on a thin-layer electrode arrangement are introduced. This arrangement makes it possible to perform voltammetric and electrochemical impedance measurements in high-temperature water with a room temperature conductivity (κ) as low as 0.1 μScm-1. A combination of these results with those obtained by means of measuring the resistance of the surface film using the contact electric resistance (CER) technique facilitates versatile characterisation of oxide film behaviour. Examples are given on impedance and CER measurements of the oxide films formed on AISI 316 stainless steel in high temperature high purity (κ < 0.3 μScm^-1) water and on OX18H10T stainless steel in VVER water. Correlations between temperature, hydrogen and oxygen content of the solution and the oxide behaviour are discussed.

Original language	English
Title of host publication	Enlarged Halden programme group meeting on high burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research
Number of pages	20
Publication status	Published - 1998
MoE publication type	D3 Professional conference proceedings
Event	Enlarged Halden Programme Group Meeting, EHPG 1998 - Lillehammer, Norway Duration: 15 Mar 1998 → 20 Mar 1998

Publication series

Series	OECD Halden Reactor Project
Number	HPR-349/48

Conference

Conference	Enlarged Halden Programme Group Meeting, EHPG 1998
Country	Norway
City	Lillehammer
Period	15/03/98 → 20/03/98

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Bojinov, M., Laitinen, T., Mäkelä, K., Saario, T., Sirkiä, P., & Beverskog, B. (1998). Characterisation of material behaviour in high temperature aqueous environments by means of electrochemical techniques. In Enlarged Halden programme group meeting on high burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research OECD Halden Reactor Project No. HPR-349/48

Bojinov, Martin ; Laitinen, Timo ; Mäkelä, Kari ; Saario, Timo ; Sirkiä, Pekka ; Beverskog, Björn. / Characterisation of material behaviour in high temperature aqueous environments by means of electrochemical techniques. Enlarged Halden programme group meeting on high burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research. 1998. (OECD Halden Reactor Project; No. HPR-349/48).

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title = "Characterisation of material behaviour in high temperature aqueous environments by means of electrochemical techniques",

abstract = "Electrochemical measurements in solutions simulating power plant coolants are complicated by the low conductivity of the water, especially in the case of boiling water reactor (BWR) environments. To be able to obtain useful information also in BWR conditions, electrochemical techniques based on a thin-layer electrode arrangement are introduced. This arrangement makes it possible to perform voltammetric and electrochemical impedance measurements in high-temperature water with a room temperature conductivity (κ) as low as 0.1 μScm-1. A combination of these results with those obtained by means of measuring the resistance of the surface film using the contact electric resistance (CER) technique facilitates versatile characterisation of oxide film behaviour. Examples are given on impedance and CER measurements of the oxide films formed on AISI 316 stainless steel in high temperature high purity (κ < 0.3 μScm-1) water and on OX18H10T stainless steel in VVER water. Correlations between temperature, hydrogen and oxygen content of the solution and the oxide behaviour are discussed. ",

author = "Martin Bojinov and Timo Laitinen and Kari M{\"a}kel{\"a} and Timo Saario and Pekka Sirki{\"a} and Bj{\"o}rn Beverskog",

note = "HUO: VAL62 Project code: V8SU00124; Enlarged Halden Programme Group Meeting, EHPG 1998 ; Conference date: 15-03-1998 Through 20-03-1998",

year = "1998",

language = "English",

series = "OECD Halden Reactor Project",

number = "HPR-349/48",

booktitle = "Enlarged Halden programme group meeting on high burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research",

}

Bojinov, M, Laitinen, T, Mäkelä, K, Saario, T, Sirkiä, P & Beverskog, B 1998, Characterisation of material behaviour in high temperature aqueous environments by means of electrochemical techniques. in Enlarged Halden programme group meeting on high burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research. OECD Halden Reactor Project, no. HPR-349/48, Enlarged Halden Programme Group Meeting, EHPG 1998, Lillehammer, Norway, 15/03/98.

Characterisation of material behaviour in high temperature aqueous environments by means of electrochemical techniques. / Bojinov, Martin; Laitinen, Timo; Mäkelä, Kari; Saario, Timo; Sirkiä, Pekka; Beverskog, Björn.

Enlarged Halden programme group meeting on high burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research. 1998. (OECD Halden Reactor Project; No. HPR-349/48).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Professional

TY - GEN

T1 - Characterisation of material behaviour in high temperature aqueous environments by means of electrochemical techniques

AU - Bojinov, Martin

AU - Laitinen, Timo

AU - Mäkelä, Kari

AU - Saario, Timo

AU - Sirkiä, Pekka

AU - Beverskog, Björn

N1 - HUO: VAL62 Project code: V8SU00124

PY - 1998

Y1 - 1998

N2 - Electrochemical measurements in solutions simulating power plant coolants are complicated by the low conductivity of the water, especially in the case of boiling water reactor (BWR) environments. To be able to obtain useful information also in BWR conditions, electrochemical techniques based on a thin-layer electrode arrangement are introduced. This arrangement makes it possible to perform voltammetric and electrochemical impedance measurements in high-temperature water with a room temperature conductivity (κ) as low as 0.1 μScm-1. A combination of these results with those obtained by means of measuring the resistance of the surface film using the contact electric resistance (CER) technique facilitates versatile characterisation of oxide film behaviour. Examples are given on impedance and CER measurements of the oxide films formed on AISI 316 stainless steel in high temperature high purity (κ < 0.3 μScm-1) water and on OX18H10T stainless steel in VVER water. Correlations between temperature, hydrogen and oxygen content of the solution and the oxide behaviour are discussed.

AB - Electrochemical measurements in solutions simulating power plant coolants are complicated by the low conductivity of the water, especially in the case of boiling water reactor (BWR) environments. To be able to obtain useful information also in BWR conditions, electrochemical techniques based on a thin-layer electrode arrangement are introduced. This arrangement makes it possible to perform voltammetric and electrochemical impedance measurements in high-temperature water with a room temperature conductivity (κ) as low as 0.1 μScm-1. A combination of these results with those obtained by means of measuring the resistance of the surface film using the contact electric resistance (CER) technique facilitates versatile characterisation of oxide film behaviour. Examples are given on impedance and CER measurements of the oxide films formed on AISI 316 stainless steel in high temperature high purity (κ < 0.3 μScm-1) water and on OX18H10T stainless steel in VVER water. Correlations between temperature, hydrogen and oxygen content of the solution and the oxide behaviour are discussed.

M3 - Conference article in proceedings

T3 - OECD Halden Reactor Project

BT - Enlarged Halden programme group meeting on high burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research

T2 - Enlarged Halden Programme Group Meeting, EHPG 1998

Y2 - 15 March 1998 through 20 March 1998

ER -

Bojinov M, Laitinen T, Mäkelä K, Saario T, Sirkiä P, Beverskog B. Characterisation of material behaviour in high temperature aqueous environments by means of electrochemical techniques. In Enlarged Halden programme group meeting on high burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research. 1998. (OECD Halden Reactor Project; No. HPR-349/48).