Abstract
The eddy-current inspection is applied to Vitkovice to non-destructive testing of the steam generator tubes. The steam generator tube specimens, 16 mm by 1.5 mm, are made of AISI 321 steel with stress corrosion cracks. They were tested by the single-frequency eddy current inspection method. Samples with known flaws were metallographically sectioned to determine the actual extent of corrosion degradation. The relation between measurement of the tube wall corrosion damage and actual extent of corrosion attack or stress corrosion cracking (SCC) was determined. Pressurized specimens with machined notches of various geometries were tested up to failure. The effect of flaw depth and length on the burst pressure were evaluated.
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