Defects Sizing Using a Pulsed Eddy Current Testing Method for Local Wall-Thinning Evaluation
Defects Sizing Using a Pulsed Eddy Current Testing Method forLocal Wall-Thinning Evaluation
著者:
Shejuan XIE Student Toshiyuki TAKAGI Tetsuya UCHIMOTO
発刊日:
公開日:
Feature extractionLocal wall-thinningMagnetic sensorPulsed ECTSizingand width
概要
The thickness of a plate is to be evaluated Introductionfrom the top surface of the plate. Keywords: Local wall-thinning, Pulsed ECT, Magnetic sensor, Feature extraction, Sizingand width. The thickness of a plate is to be evaluated from the top surface of the plate.To simulate the small area wall-thinning on the inner surface of a pipe, five AISI316 austenitic stainless steel flat plates with a slot defect were prepared in our ex periments. The size of the five plates is the same, 120mm in length, 100mm in width and 10mm in thickness. A rectangular slot defect was arranged along the center line of the bottom side of the plate in the width dir ection. The width of the slot defect is 10mm, and the depth is 2.5, 5, 6, 7, and 8mm, respectively. The depth of the slot defect is to be detected from the top surface of the plate. The specimen was shown in Figure 1.
