Abstract: In this paper, some research activities performed by authors on the Electromagnetic Vondestructive Evaluation (ENDE) for materials and structures of nuclear and other industries are ntroduced. The major contents includes, theoretical and experimental studies on NDT of ultra-li ght material and structures, NDT methods for Thermal Barrier Coating (TBC) inspection, improvement en quantitative NDT method of Stress Corrosio n Crack (SCC), new inspection method for material legradation etc. Research me...
英字タイトル:
Introduction of Some Researches on Electromagnetic NDT

Abstract: In nuclear power plants (NPPs), due to flow accelerated corrosion (FAC) and liquid droplet impingement (LDI) of the coolant inside the pipe, there may happen local wall thinning defects on the inner surface of a pipe. Concerning the material of pipes, there are mainly two types, low-carbon steel and stainless steel. In this paper, the feas ibility of quantitative nondestructive evaluation (QNDE) to wall thinning in stainless steel pipes using pulsed eddy current testing (PECT) method is discussed...
英字タイトル:
Quantitative NDE of pipe wall thinning using pulsed eddy current testing method

This paper evaluates the applicability of eddy current inversion techniques to the sizing of defects in Inconel welds with rough surfaces. For this purpose, a plate Inconel weld specimen, which models the welding of a stub tube in a boiling water nuclear reactor, is fabricated, and artificial notches machined into the specimen. Eddy current inspections using six probes in weld inspection evaluated. It is revealed that if suitable probes are applied, an Inconel weld does not provide large noise signals in ed...
英字タイトル:
Applicability of eddy current inversion techniques to the sizing of defects in Inconel welds of BWR internals