Feasibility study on infrared electro-thermal NDE of stainless steel

Technical Report · Sat Nov 01 04:00:00 EST 1975

DOI:https://doi.org/10.2172/4090915· OSTI ID:4090915

Green, D R; Hassberger, J A

Electro-thermal examination, a branch of thermal testing (TT), is a promising method being developed for NDE of stainless steel welds. This report describes the first phase of development; i.e., preliminary demonstration and laboratory evaluation of the method's sensitivity to notches in Type 304 stainless steel plate specimens. It also includes a description of the basic principles, together with a description of the hardware and experimental results showing that electrical discharge machined notches down to 0.16 cm (0.06 in.) long x 0.08 cm (0.03 in.) deep were detected. A qualitative technique for interpreting the test results to determine whether defects are at the surface or deeper within the material is demonstrated. (auth)

• Research Organization: Hanford Engineering Development Lab., Richland, Wash. (USA)
• DOE Contract Number: E(45-1)-2170
• NSA Number: NSA-33-020167
• OSTI ID: 4090915
• Report Number(s): HEDL-TME--75-133
• Country of Publication: United States
• Language: English

Related Subjects

*REACTOR COMPONENTS-- THERMAL TESTING
*STAINLESS STEELS-- WELDED JOINTS
*WELDED JOINTS-- THERMAL TESTING
420500* --Engineering--Materials Testing
DEFECTS
ELECTRICAL TESTING
FEASIBILITY STUDIES
N42400* --Engineering--Materials Testing
PLATES