| Client |
TRC WesDyne
(BNFL/Westinghouse) |
|
| Problem |
Inconel 182, used extensively
since 1970's, subsequently found to be susceptible to
stress corrosion cracking around stainless steel/inconel
transition welds. Defect detection exacerbated by complex
geometry, coarse material structure & microscopic
inter-granular crack characteristics. |
| Approach |
Evaluation of techniques on
representative manufactured defects resulting in development
of a reliable detection & sizing procedure based upon
careful analysis of diffracted TOF & PE signals. |
| Solution |
Resultant method formally
validated & approved for use by nuclear regulating
authorities in USA & Sweden.
|
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