Evaluation of LACBWR vessel stud replacement material. Topical report No. 17

Technical Report · Fri Oct 19 04:00:00 EDT 1973

OSTI ID:4331257

Norris, E B; Pickett, A G

In support of an analysis of failures of two LACBWR vessel closure studs, fatigue crack growth data was developed for the replacement material in several environments related to plant operations. None of the environments studied reduced the fatigue crack propagation resistance below the range of values expected for high strength quenched and tempered steels. Stress analysis has previously demonstrated that the fatigue life of the replacement studs would be adequate for programmed service excluding the potential effects of corrosion on fatigue life. These program results eliminate that element of concern. There appears to be no reason to amend the inservice inspection program from the standpoint of corrosion effects. (auth)

• Research Organization: Southwest Research Inst., San Antonio, Tex. (USA)
• NSA Number: NSA-29-020006
• OSTI ID: 4331257
• Report Number(s): SwRI--2154-P-11-26
• Country of Publication: United States
• Language: English

Related Subjects

*LACBWR REACTOR-- PRESSURE VESSELS
CLOSURES
CONTAINMENT
CORROSION
CRACKS
FAILURES
FASTENERS
FATIGUE
HEAT TREATMENTS
INSPECTION
N50230 --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies
N77100* --Reactors--Power Reactors
Non-breeding
Light- water Moderated
Boiling Water-cooled
QUENCHING
STEELS
TEMPERING
TESTING