Current and advanced pressure vessel surveillance specimen evaluation techniques

Conference · Mon Jan 01 04:00:00 EST 1973 · Conf. Remote Syst. Technol., Proc., no. 21, pp. 86-90

OSTI ID:4387596

Perrin, J S; Skeckherd, J W

From 21st conference on remote systems technology; San Francisco, California, USA (11 Nov 1973). See CONF-731111-. Nuclear reactor pressure vessels are exposed to irradiation during normal operation. The mechanical properties of the steels typically used are appreciably changed by the irradiation. Commercial power reactors incorporate surveillance capsules containing mechanical property specimens including tensile specimens. Charpy V- notch impact specimens, and, in some capsules, wedgeopen-loading fracture mechanics specimens. Capsules are periodically removed, and specimens are tested to determine the changes in the mechanical properties. Current testing techniques include conventional Charpy V-notch impact testing, tensile testing, and fracture toughness testing. Advanced testing techniques which show promise for surveillance testing include instrumental Charpy testing and acoustic emission monitoring. (auth)

• Research Organization: Battelle Memorial Inst., Columbus, Ohio
• NSA Number: NSA-29-005548
• OSTI ID: 4387596
• Conference Information: Journal Name: Conf. Remote Syst. Technol., Proc., no. 21, pp. 86-90
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*PRESSURE VESSELS-- MATERIALS TESTING
*STEELS-- MECHANICAL PROPERTIES
ACOUSTIC EMISSION TESTING
CHARPY TEST
FERRITE
FRACTURE PROPERTIES
IMPACT TESTS
N50230 --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies
N50240* --Metals
Ceramics
& Other Materials--Metals & Alloys--Radiation Effects
N79200 --Reactors--Reactor Components & Accessories
PHYSICAL RADIATION EFFECTS
REACTORS