Dynamic fracture toughness of irradiated A533 Grade B Class 1 pressure vessel steel
The effect of neutron radiation on the fracture characteristics of an A533 Grade B Class 1 pressure vessel steel was investigated using standard and instrumented precracked Charpy impact tests. Use of the instrumented impact test with precracked specimens has allowed fracture toughness values to be determined from the Charpy test. Neutron exposure resulted in minute decreases in the upper-shelf Charpy energy and fracture toughness, and an increase in the ductile brittle transition temperature (DBTT). The Charpy transition temperature shifted about 29 K while the fracture toughness shift was about 20 K. The temperature variation of the dynamic yield strength exhibited dips at DBTT for both unirradiated archive and irradiated materials.
- Research Organization:
- North Carolina State Univ., Raleigh, NC
- OSTI ID:
- 5526288
- Journal Information:
- Nucl. Technol.; (United States), Vol. 64:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
22 GENERAL STUDIES OF NUCLEAR REACTORS
PRESSURE VESSELS
REACTOR MATERIALS
FRACTURE PROPERTIES
PHYSICAL RADIATION EFFECTS
STEEL-ASTM-A533
CHARPY TEST
DAMAGING NEUTRON FLUENCE
DUCTILE-BRITTLE TRANSITIONS
IRRADIATION
TRANSITION TEMPERATURE
ALLOYS
CONTAINERS
DESTRUCTIVE TESTING
IMPACT TESTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
NEUTRON FLUENCE
PHYSICAL PROPERTIES
RADIATION EFFECTS
STEELS
TESTING
THERMODYNAMIC PROPERTIES
360106* - Metals & Alloys- Radiation Effects
220200 - Nuclear Reactor Technology- Components & Accessories