漏洩磁束を利用した SUS304 鋼の疲労・損傷の評価
英字タイトル:
Evaluation of Fatigue and Damage in SUS304 using Magnetic Flux Leakage
著者:
佐々木 海 Kai SASAKI 安部 正高 Masataka ABE 木下 勝之 Katsuyuki KINOSHITA 松本 英治 Eiji MATSUMOTO
発刊日:
公開日:
Fatigue CrackHigh Sensitive Magnetic SensorMFLNDESUS304
Evaluation of Fatigue and Damage in SUS304 using Magnetic Flux Leakage
著者:
佐々木 海 Kai SASAKI 安部 正高 Masataka ABE 木下 勝之 Katsuyuki KINOSHITA 松本 英治 Eiji MATSUMOTO
発刊日:
公開日:
カテゴリ: 第9回
キーワードタグ:Fatigue CrackHigh Sensitive Magnetic SensorMFLNDESUS304
概要
Austenitic stainless steel SUS304 is typically classified as a paramagnetic material, but it forms ferromagnetic martensite phase due to plastic deformation, stress or fatigue. This martensitic transformation can be applied to magnetic Non-Destructive Evaluation (NDE) technics. In this paper, we attempt to detect and estimate the artificially introduced notch, fatigue crack and fatigued part in SUS304 steel by measuring the Magnetic Flux Leakage (MFL) near the specimen surface. It is fo und that the notch and fatigue crack can be detected by measuring the MFL, and the possibility was shown to detect the potential part of fatigue crack propagation.
