- Title
- Sensitivity Studies on Nondestructive Evaluation (Nde) Methods for Monitoring Fatigue and Thermal Embrittlement in Austenitic and Ferritic Steel Nuclear Reactor Plant (Nrp) Components
- Author
- MINDA, ELISE
- Degree
- MS, University of Cincinnati,
Engineering : Aerospace Engineering, 2007.
- Advisor
- Dr. Peter Nagy
- Pages
- 111p.
- Abstract
- This work is aimed at the development of nondestructive evaluation techniques for in-situ monitoring of nuclear reactor plant components. The feasibility of different electromagnetic methods was investigated to identify the most effective monitoring methods for two baseline damage types that simulate degradation mechanisms relevant to nuclear reactor plants, namely high-temperature low-cycle fatigue damage and thermal/radiation embrittlement. The five electromagnetic materials characterization methods tested in this work included magnetic susceptibility, thermoelectric power, eddy current, alternating current potential drop, and electromagnetic acoustic inspection. The results indicate that shear wave birefringence measurements conducted by non-contacting electromagnetic acoustic transducers are probably the most sensitive to high-temperature low-cycle fatigue in austenitic steel, though it is recommended that the feasibility of electric conductivity birefringence measurements using eddy current and alternating current potential drop methods be also further investigated. As for nondestructive monitoring of embrittlement in ferritic steels, the very limited study indicates that thermoelectric power inspection is the most viable candidate.
Document number: ucin1195611890.
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Copyright 2007, all rights reserved.
