抄録
In recent years, iron-based materials such as steel have been utilized in many structural components. We have already proposed the fatigue evaluation method for steel by measuring an inductance of a pancake-type coil using an LCR meter. In the case of low carbon steel, pulsating tension fatigue was evaluated using the inductance method. In the case of steel such as SS400, pulsating tension fatigue was evaluated using the inductance method on both conditions when the dc magnetic field was not applied when the dc magnetic field was applied. The dc magnetic field was generated by a neodymium (Nd) permanent magnet. There is a good correlation between the amount of pulsating tension fatigue and the inductance of the pancake-type coil. This paper describes the inductance method for fatigue evaluation in steel.
