Automated Diagnosis and Classification of Steam Generator Tube Defects

Garcia, Dr. Gabe V.

New Mexico State University (United States)

关键词: Crack Propagation;    Classification;    Nondestructive Testing;    Intergranular Corrosion;    Diagnostic Techniques;   

DOI  :  10.2172/833464
RP-ID  :  DOE/ID/14237
RP-ID  :  FG07-01ID14237
RP-ID  :  833464

美国|英语

来源: UNT Digital Library

【 摘 要 】

A major cause of failure in nuclear steam generators is tube degradation. Tube defects are divided into seven categories, one of which is intergranular attack/stress corrosion cracking (IGA/SCC). Defects of this type usually begin on the outer surface of the tubes and propagate both inward and laterally. In many cases these defects occur at or near the tube support plates. Several different methods exist for the nondestructive evaluation of nuclear steam generator tubes for defect characterization.