Durability evaluation method for vessel internals of VVER by criterion of initialization of intergranular stress corrosion cracking of irradiated austenitic steels

Inorganic Materials: Applied Research - Tập 2 - Trang 624-632 - 2012
B. Z. Margolin1, V. A. Fedorova1, V. M. Filatov2
1Federal State Unitary Enterprise Central Research Institute of Structural Materials Prometei, St. Petersburg, Russia
2OAO Dollezhal’ NIKIET, Moscow, Russia

Tóm tắt

A physicomechanical model for occurrence of fractures of austenitic steels upon intergranular stress corrosion cracking (IGSCC) is proposed on the basis of an analysis of experimental data on the susceptibility of irradiated austenitic steels to IGSCC during contact with the coolant of the primary circuit of a water-moderated water-cooled power reactor (VVER). A durability evaluation method for units of vessel internals by the criterion of the initialization of IGSCC is developed that allows for calculations under a timevarying stress-strain state of the unit and a damaging radiation dose.

Tài liệu tham khảo

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