Abstract
IASCC (Irradiation Assisted Stress Corrosion Cracking) crack initiation tests were carried out on thimble tube material (≤ 80 dpa) retrieved from a Belgian PWR. The crack initiation tests were carried out by cyclic load testing of thimble tube specimens at different stress levels in a PWR environment. The time-to-failure was determined as a function of the applied stress to find a stress limit under which no stress corrosion cracking would take place. With these new results it is possible to compare constant load data of the previous test campaign with cyclic load data and find out what is the detrimental effect of load transients on the time-to-failure. The results of the cyclic loading tests showed that the failures occurred at a significantly lower average stress than under constant load conditions. This effect was more pronounced at lower stress levels.
Original language | English |
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Title of host publication | International Symposium Contribution of Materials Investigations and Operating Experience to Light Water NPPs’ Safety, Performance and Reliability |
Publisher | Unknown |
Pages | 1-11 |
Number of pages | 11 |
State | Published - 17 Sep 2018 |
Event | 2018 - FONTEVRAUD 9: Contribution of Materials Investigations and Operating Experience to Light Water NPPs’ Safety, Performance and Reliability - Palais des Papes, Avignon Duration: 17 Sep 2018 → 20 Sep 2018 http://www.sfen-fontevraud9.org/ |
Conference
Conference | 2018 - FONTEVRAUD 9 |
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Country/Territory | France |
City | Avignon |
Period | 2018-09-17 → 2018-09-20 |
Internet address |