Nondestructive Measurements for Diagnostics of Advanced Reactor Passive Components

Conference · Tue Sep 20 04:00:00 EDT 2016

OSTI ID:1344669

Prowant, Matthew S.; Dib, Gerges; Roy, Surajit; Luzi, Lorenzo; Ramuhalli, Pradeep

Information on advanced reactor (AdvRx) component condition and failure probability is necessary to maintaining adequate safety margins and avoiding unplanned shutdowns, both of which have regulatory and economic consequences. Prognostic health management (PHM) technologies provide one approach to addressing these needs by providing the technical means for lifetime management of significant passive components and reactor internals. However, such systems require measurement data that are sensitive to degradation of the component. This paper describes results to date of ongoing research on nondestructive measurements of component condition for degradation mechanisms of relevance to AdvRx concepts. The focus of this paper is on in-situ ultrasonic measurements during high-temperature creep degradation. The data were analyzed to assess the sensitivity of the measurements to creep degradation, with the specific objective of assessing the suitability of the resulting correlations for remaining life prediction. The details of the measurements, results of data analysis, and ongoing research in this area are discussed.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1344669
• Report Number(s): PNNL-SA-115215; RC0423000
• Country of Publication: United States
• Language: English

Related Subjects

Fe-1%Cu
HTGR
NDE
PHM
SFR
advanced reactors
barkhausen
creep
creep-fatigue
diagnostics
high-temperature
in-situ monitoring
nonlinear ultrasonics
prognostics health management
reactor aging