IASCC crack initiation testing of thimble tube material with a dose up to 80 dpa under PWR conditions

Rik-Wouter Bosch; Marc Vankeerberghen; Robert Gérard; Frédéric Somville; Serguei Gavrilov

IASCC crack initiation testing of thimble tube material with a dose up to 80 dpa under PWR conditions

Rik-Wouter Bosch, Marc Vankeerberghen, Robert Gérard, Frédéric Somville, Serguei Gavrilov

Research output › peer-review

Abstract

IASCC (Irradiation Assisted Stress Corrosion Cracking) crack initiation tests have been carried out on thimble tube material retrieved from a Belgian PWR. The crack initiation tests were carried out by constant load testing of thimble tube specimens at different stress levels. The time-to-failure was determined as a function of the applied stress to find a stress limit under which no stress corrosion cracking will take place. The thimble tube was made of 316L cold-worked stainless steel and the dose profile along the thimble tube ranges from 45 to 80 dpa. This allows adding crack initiation data for dpa values that have not been significantly reported i.e. in the range of 45-55 dpa and at 80 dpa. The results can be used to determine whether the critical stress limit under which no IASCC occurs saturates for a dpa value larger than 30 dpa or whether a small further decrease with dpa can be observed.

Original language	English
Title of host publication	FONTEVRAUD 8 - Contribution of Materials Investigations & Operating Experience to LWR's Safety, Performance & Reliability
Place of Publication	Paris, France
State	Published - 15 Sep 2014
Event	2014 - FONTEVRAUD 8 : Contribution of Materials Investigations and Operating Experience to Light Water NPPs’ Safety, Performance and Reliability - SFEN - Sociéte Francaise d' Energie Nucléaire, Avignon Duration: 15 Sep 2014 → 18 Sep 2014

Conference

Conference	2014 - FONTEVRAUD 8
Country/Territory	France
City	Avignon
Period	2014-09-15 → 2014-09-18

Cite this

@inproceedings{0aa8f0f957184bd19e99a9020a3c52b9,

title = "IASCC crack initiation testing of thimble tube material with a dose up to 80 dpa under PWR conditions",

abstract = "IASCC (Irradiation Assisted Stress Corrosion Cracking) crack initiation tests have been carried out on thimble tube material retrieved from a Belgian PWR. The crack initiation tests were carried out by constant load testing of thimble tube specimens at different stress levels. The time-to-failure was determined as a function of the applied stress to find a stress limit under which no stress corrosion cracking will take place. The thimble tube was made of 316L cold-worked stainless steel and the dose profile along the thimble tube ranges from 45 to 80 dpa. This allows adding crack initiation data for dpa values that have not been significantly reported i.e. in the range of 45-55 dpa and at 80 dpa. The results can be used to determine whether the critical stress limit under which no IASCC occurs saturates for a dpa value larger than 30 dpa or whether a small further decrease with dpa can be observed.",

keywords = "IASCC, crack initiation, irradiated stainless steel, thimble tube, PWR",

author = "Rik-Wouter Bosch and Marc Vankeerberghen and Robert G{\'e}rard and Fr{\'e}d{\'e}ric Somville and Serguei Gavrilov",

note = "Score = 3; 2014 - FONTEVRAUD 8 : Contribution of Materials Investigations and Operating Experience to Light Water NPPs{\textquoteright} Safety, Performance and Reliability ; Conference date: 15-09-2014 Through 18-09-2014",

year = "2014",

month = sep,

day = "15",

language = "English",

booktitle = "FONTEVRAUD 8 - Contribution of Materials Investigations & Operating Experience to LWR's Safety, Performance & Reliability",

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TY - GEN

T1 - IASCC crack initiation testing of thimble tube material with a dose up to 80 dpa under PWR conditions

AU - Bosch, Rik-Wouter

AU - Vankeerberghen, Marc

AU - Gérard, Robert

AU - Somville, Frédéric

A2 - Gavrilov, Serguei

N1 - Score = 3

PY - 2014/9/15

Y1 - 2014/9/15

N2 - IASCC (Irradiation Assisted Stress Corrosion Cracking) crack initiation tests have been carried out on thimble tube material retrieved from a Belgian PWR. The crack initiation tests were carried out by constant load testing of thimble tube specimens at different stress levels. The time-to-failure was determined as a function of the applied stress to find a stress limit under which no stress corrosion cracking will take place. The thimble tube was made of 316L cold-worked stainless steel and the dose profile along the thimble tube ranges from 45 to 80 dpa. This allows adding crack initiation data for dpa values that have not been significantly reported i.e. in the range of 45-55 dpa and at 80 dpa. The results can be used to determine whether the critical stress limit under which no IASCC occurs saturates for a dpa value larger than 30 dpa or whether a small further decrease with dpa can be observed.

AB - IASCC (Irradiation Assisted Stress Corrosion Cracking) crack initiation tests have been carried out on thimble tube material retrieved from a Belgian PWR. The crack initiation tests were carried out by constant load testing of thimble tube specimens at different stress levels. The time-to-failure was determined as a function of the applied stress to find a stress limit under which no stress corrosion cracking will take place. The thimble tube was made of 316L cold-worked stainless steel and the dose profile along the thimble tube ranges from 45 to 80 dpa. This allows adding crack initiation data for dpa values that have not been significantly reported i.e. in the range of 45-55 dpa and at 80 dpa. The results can be used to determine whether the critical stress limit under which no IASCC occurs saturates for a dpa value larger than 30 dpa or whether a small further decrease with dpa can be observed.

KW - IASCC

KW - crack initiation

KW - irradiated stainless steel

KW - thimble tube

KW - PWR

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_137577

UR - http://knowledgecentre.sckcen.be/so2/bibref/12005

M3 - In-proceedings paper

BT - FONTEVRAUD 8 - Contribution of Materials Investigations & Operating Experience to LWR's Safety, Performance & Reliability

CY - Paris, France

T2 - 2014 - FONTEVRAUD 8

Y2 - 15 September 2014 through 18 September 2014

ER -