IASCC crack initiation testing of thimble tube material under PWR conditions: effect of oxide layer, stress and load form

Rik-Wouter Bosch; Milan Konstantinovic; Marc Vankeerberghen

IASCC crack initiation testing of thimble tube material under PWR conditions: effect of oxide layer, stress and load form

Microstructural and Non-destructive Analysis

Research output › peer-review

Abstract

IASCC (Irradiation Assisted Stress Corrosion Cracking) crack initiation tests were carried out on thimble tube material (≤ 80 dpa) retrieved from a Belgian PWR. In this work the effect of the oxide layer on the IASCC susceptibility was investigated with O-ring specimens from which the original 25-years old oxide layer was removed by soft grinding. Fifteen of these O-ring specimens with fresh surfaces were sub-jected to constant load tests at different stress levels in PWR environment with a total test time of about 4350 hours (≈ six months). The experimental results showed that the time-to failure was significantly larger than those for the O-ring with original oxide layer. This effect was more pronounced at higher stress levels.

Original language	English
Title of host publication	International Symposium Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability
Publisher	Sfen - Société française d’énergie nucléaire
Pages	1-10
Number of pages	10
State	Published - 22 Sep 2022
Event	2022 - FONTEVRAUD 10: Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability - Palais des Papes, Avignon Duration: 19 Sep 2022 → 22 Sep 2022 https://www.sfen.org/evenement/fontevraud-10/

Conference

Conference	2022 - FONTEVRAUD 10
Abbreviated title	Fontevraud 10
Country/Territory	France
City	Avignon
Period	2022-09-19 → 2022-09-22
Internet address	https://www.sfen.org/evenement/fontevraud-10/

Access to Document

https://www.sfen.org/License: Unspecified

Cite this

Bosch, R.-W., Konstantinovic, M., & Vankeerberghen, M. (2022). IASCC crack initiation testing of thimble tube material under PWR conditions: effect of oxide layer, stress and load form. In International Symposium Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability (pp. 1-10). Sfen - Société française d’énergie nucléaire. https://www.sfen.org/

Bosch, Rik-Wouter ; Konstantinovic, Milan ; Vankeerberghen, Marc. / IASCC crack initiation testing of thimble tube material under PWR conditions: effect of oxide layer, stress and load form. International Symposium Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability. Sfen - Société française d’énergie nucléaire, 2022. pp. 1-10

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abstract = "IASCC (Irradiation Assisted Stress Corrosion Cracking) crack initiation tests were carried out on thimble tube material (≤ 80 dpa) retrieved from a Belgian PWR. In this work the effect of the oxide layer on the IASCC susceptibility was investigated with O-ring specimens from which the original 25-years old oxide layer was removed by soft grinding. Fifteen of these O-ring specimens with fresh surfaces were sub-jected to constant load tests at different stress levels in PWR environment with a total test time of about 4350 hours (≈ six months). The experimental results showed that the time-to failure was significantly larger than those for the O-ring with original oxide layer. This effect was more pronounced at higher stress levels.",

keywords = "Irradiated stainless steel, IASCC, Crack initiation, PWR",

author = "Rik-Wouter Bosch and Milan Konstantinovic and Marc Vankeerberghen",

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Bosch, R-W , Konstantinovic, M & Vankeerberghen, M 2022, IASCC crack initiation testing of thimble tube material under PWR conditions: effect of oxide layer, stress and load form. in International Symposium Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability. Sfen - Société française d’énergie nucléaire, pp. 1-10, 2022 - FONTEVRAUD 10, Avignon, France, 2022-09-19. <https://www.sfen.org/>

IASCC crack initiation testing of thimble tube material under PWR conditions: effect of oxide layer, stress and load form. / Bosch, Rik-Wouter ; Konstantinovic, Milan ; Vankeerberghen, Marc.
International Symposium Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability. Sfen - Société française d’énergie nucléaire, 2022. p. 1-10.

Research output › peer-review

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T1 - IASCC crack initiation testing of thimble tube material under PWR conditions: effect of oxide layer, stress and load form

AU - Bosch, Rik-Wouter

AU - Konstantinovic, Milan

AU - Vankeerberghen, Marc

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N2 - IASCC (Irradiation Assisted Stress Corrosion Cracking) crack initiation tests were carried out on thimble tube material (≤ 80 dpa) retrieved from a Belgian PWR. In this work the effect of the oxide layer on the IASCC susceptibility was investigated with O-ring specimens from which the original 25-years old oxide layer was removed by soft grinding. Fifteen of these O-ring specimens with fresh surfaces were sub-jected to constant load tests at different stress levels in PWR environment with a total test time of about 4350 hours (≈ six months). The experimental results showed that the time-to failure was significantly larger than those for the O-ring with original oxide layer. This effect was more pronounced at higher stress levels.

AB - IASCC (Irradiation Assisted Stress Corrosion Cracking) crack initiation tests were carried out on thimble tube material (≤ 80 dpa) retrieved from a Belgian PWR. In this work the effect of the oxide layer on the IASCC susceptibility was investigated with O-ring specimens from which the original 25-years old oxide layer was removed by soft grinding. Fifteen of these O-ring specimens with fresh surfaces were sub-jected to constant load tests at different stress levels in PWR environment with a total test time of about 4350 hours (≈ six months). The experimental results showed that the time-to failure was significantly larger than those for the O-ring with original oxide layer. This effect was more pronounced at higher stress levels.

KW - Irradiated stainless steel

KW - IASCC

KW - Crack initiation

KW - PWR

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BT - International Symposium Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability

PB - Sfen - Société française d’énergie nucléaire

T2 - 2022 - FONTEVRAUD 10

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Bosch RW , Konstantinovic M , Vankeerberghen M. IASCC crack initiation testing of thimble tube material under PWR conditions: effect of oxide layer, stress and load form. In International Symposium Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability. Sfen - Société française d’énergie nucléaire. 2022. p. 1-10