Comparative studies of brittle fracture mechanism for standard and reconstructed CT specimens made of VVER-1000 RPV materials
- Авторлар: Erak A.1, Kuleshova E.1,2, Bubiakin S.1, Bandura A.1, Zhurko D.1
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Мекемелер:
- National Research Center Kurchatov Institute,Kurchatov Centre for Nuclear Technologies
- National Research Nuclear University MEPhI
- Шығарылым: Том 8, № 6 (2017)
- Беттер: 927-935
- Бөлім: Radiation Materials Science
- URL: https://journals.rcsi.science/2075-1133/article/view/207015
- DOI: https://doi.org/10.1134/S207511331706003X
- ID: 207015
Дәйексөз келтіру
Аннотация
Before 2002, SE(B) specimens were included in surveillance specimen sets for operating VVER-1000 reactors. The transition from SE(B) specimens to CT specimens in the fracture toughness tests is caused by the necessity to reduce the scatter and the conservativeness of results caused by the scale increase and the loading scheme. To make such a transition possible, SE(B) specimens were reconstructed into CT specimens. The comparative fractographic analysis of standard and reconstructed CT specimens after the fracture toughness tests shows that the crack initiation in both types starts from the “origin.” The types of “origins” and their ratios do not change, and the test results and the fractographic analysis data for standard and reconstructed CT specimens are described by one analytical dependence CTOD(CID) for each material and state.
Авторлар туралы
A. Erak
National Research Center Kurchatov Institute,Kurchatov Centre for Nuclear Technologies
Хат алмасуға жауапты Автор.
Email: nrcki@nrcki.ru
Ресей, Moscow
E. Kuleshova
National Research Center Kurchatov Institute,Kurchatov Centre for Nuclear Technologies; National Research Nuclear University MEPhI
Email: nrcki@nrcki.ru
Ресей, Moscow; Moscow
S. Bubiakin
National Research Center Kurchatov Institute,Kurchatov Centre for Nuclear Technologies
Email: nrcki@nrcki.ru
Ресей, Moscow
A. Bandura
National Research Center Kurchatov Institute,Kurchatov Centre for Nuclear Technologies
Email: nrcki@nrcki.ru
Ресей, Moscow
D. Zhurko
National Research Center Kurchatov Institute,Kurchatov Centre for Nuclear Technologies
Email: nrcki@nrcki.ru
Ресей, Moscow