電磁非破壊評価法を用いたNi 基合金の鋭敏化評価
英字タイトル:
Evaluation of Sensitization of Ni Base Alloys using Electromagnetic Nondestructive EvaluationMethod
著者:
及川 諒太 Ryota OIKAWA 内一 哲哉 Tetsuya UCHIMOTO
発刊日:
公開日:
Alloy 600Nondestructive evaluationNonlinear eddy current methodSensitization
Evaluation of Sensitization of Ni Base Alloys using Electromagnetic Nondestructive EvaluationMethod
著者:
及川 諒太 Ryota OIKAWA 内一 哲哉 Tetsuya UCHIMOTO
発刊日:
公開日:
カテゴリ: 第6回
キーワードタグ:Alloy 600Nondestructive evaluationNonlinear eddy current methodSensitization
概要
It is well known that alloy 600, one of Ni base alloys, is paramagnetic after solution heat treatment, but as sensitization increases, its magnetic properties change. In this study, fea sibility of nondestructive evaluation of sensitization of alloy 600 is discussed focusing on its magnetic properties. To investigate the relationship between magnetic properties and sen sitization, alloy 600 were heated in different temperatures and duration. Then, the relationship between magnetic properties and sensitization is discussed based on hysteresis curves and microstructure observed by TEM and numerical analysis. Finally, nonlinear eddy current method is applied and the feasibility of nondestructive evaluation of sensitization is discussed.
