Dynamic fracture toughness of irradiated A533 Grade B Class 1 pressure vessel steel

Journal Article · Thu Mar 01 04:00:00 EST 1984 · Nucl. Technol.; (United States)

OSTI ID:5526288

Murty, K L; Bamford, W H; Shogun, R P

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), Journal Name: Nucl. Technol.; (United States) Vol. 64:3; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200 -- Nuclear Reactor Technology-- Components & Accessories
36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
CHARPY TEST
CONTAINERS
DAMAGING NEUTRON FLUENCE
DESTRUCTIVE TESTING
DUCTILE-BRITTLE TRANSITIONS
FRACTURE PROPERTIES
IMPACT TESTS
IRON ALLOYS
IRON BASE ALLOYS
IRRADIATION
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
NEUTRON FLUENCE
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
PRESSURE VESSELS
RADIATION EFFECTS
REACTOR MATERIALS
STEEL-ASTM-A533
STEELS
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE