Feasibility Study of Magnetic NDE by Impedance Measurement using Single-yoke

摘要：

This work is a feasibility study of nondestructive evaluation (NDE) for degradation in installed structural components by impedance measurement. Inductance and resistance of a single-yoke coil located on cold-rolled plates and deformed ones were investigated.Impedance decreases with increasing the reduction ratio for the cold-rolled plates,whereas it is nearly constant in elastic region and decreases with increasing the tensile stress in plastic region for the deformed plates. Additionally, the single-yoke scanned the wider surface of the deformed plates and the impedance distribution of the deformed steels was evaluated. Impedance distribution will reflect the distribution of mechanical properties of the deformed steels. This shows potential of magnetic NDE for structural components using impedance measurement of the single-yoke.

关键词： single-yoke permeability nondestructive evaluation impedance

作者: Hiroaki KIKUCHI Fumitoshi SATO Katsuyuki ARA

作者单位: Yasuhiro KAMADA, Satoru KOBAYASHI NDE & SRC, Faculty of Engineering, Iwate University 4-3-5 Ueda, Morioka 020-8551, Japan

会议类型: 国际会议

会议名称: 第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)

会议地点: 上海

会议语种:英文

页码: 2631-2636

在线出版日期: 2008-10-25（万方平台首次上网日期，不代表论文的发表时间）