Electromagnetic Property Evaluation on HAZ and Base Metal of Modified 9Cr-1Mo steel by Eddy Current Method
英字タイトル:
Electromagnetic Property Evaluation on HAZ and Base Metal of Modified 9Cr-1Mo steel by Eddy Current Method
著者:
Haiyan TIAN Tetsuya UCHIMOTO Toshiyuki TAKAGI Yukio TAKAHASHI
発刊日:
公開日:
Base MetalEddy CurrentElectromagnetic PropertiesHAZModified 9Cr-1 Mo steel
Electromagnetic Property Evaluation on HAZ and Base Metal of Modified 9Cr-1Mo steel by Eddy Current Method
著者:
Haiyan TIAN Tetsuya UCHIMOTO Toshiyuki TAKAGI Yukio TAKAHASHI
発刊日:
公開日:
カテゴリ: 第3回
キーワードタグ:Base MetalEddy CurrentElectromagnetic PropertiesHAZModified 9Cr-1 Mo steel
概要
Eddy-current method is applied to evaluate electromagnetic properties of modified 9Cr-1 Mo steel used in power plants in order to investigate the material changes in heat affected zone (HAZ) and base metal in Type IV damage evaluation. A pancake-coil impedance model based on eddy current theory is proposed to evaluate conductivity and permeability of conducting mat erial. Further more a series of HAZ and base specimens of Modified 9Cr-1 Mo steel in different heat treatment conditions are experimentally measured and then their conductivity and per meability are estimated. The evaluated results show that electromagnetic properties difference between specimens in each heat treatment conditions is obvious and can be distinguished.
