論文
磁気センサの分解能を考慮した逆解析に基づく欠陥形状の評価
著者:
中住 昭吾,Shogo NAKASUMI,鈴木 隆之,Takayuki SUZUKI
発刊日:
公開日:
キーワードタグ:
In this paper, an improvement technique for non-destructive evaluation using magnetic flux leakage is presented. It is indicated that the magnetic flux density varies steeply around defects. The response function which associates magnetic dipole and magnetic flux density in terms of geometrical coordinate is improved in order to catch the average value of magnetic flux along sensor length instead of locally-restricted value. The effect of that improvement is verified in the scheme of numerical simulat...
英字タイトル:
Evaluation of Defect Shape Based on Inverse Analysis Considering the Resolution of Magnetic Sensor
論文
磁気的手法による応力腐食割れの初期劣化評価
著者:
高屋 茂,Shigeru TAKAYA,鈴木 隆之,Takayuki SUZUKI,松本 善博,Yoshihiro MATSUMOTO,出町 和之,Kazuyuki DEMACHI,上坂 充,Mitsuru UESAKA
発刊日:
公開日:
キーワードタグ:
Two magnetic methods are proposed for the evaluation of initial degradations of type 304 stainless steel in stress corrosion cracking (SCC). The first one is the measurement of the distribution of chromium depletion by means of a magnetic force microscope (MEM). MEM observations are performed for some samples sensitized in various conditions, and the obtained results coincide with the expected ones from the chromium behavior. Moreover, the phase distributions in the solution-annealed and sensitized states a...
英字タイトル:
Evaluation of Initial Degradation in Stress Corrosion Cracking by Magnetic Methods