Fatigue dependence of residual magnetization in austenitic stainless steel plates

Oka, M.; Yakushiji, Terutoshi; Enokizono, Masato

doi:10.1109/20.951048

Cited by 12 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We used 100 MPa, 110 MPa, 115 MPa, 120 MPa, and 125 MPa as a value of � a . When stress is the plane bending stress, fatigue of metal such as austenitic stainless steels progresses even if applied stress is below the fatigue limit [8,9]. Therefore, 100 MPa was used as one of � a .…”

Section: S-n Curve Of the Specimenmentioning

confidence: 99%

Examination of the Inductance Method for Non-Destructive Testing in Structural Metallic Material by Means of the Pancake-type Coil

Oka

Yakushiji

Tsuchida

et al. 2013

Journal of the Japan Society of Applied Electromagnetics and Me

View full text Add to dashboard Cite

We have already proposed the fatigue evaluation method for the metallic material by measuring an inductance of a pancake-type coil using a LCR meter. This method was called the inductance method. This time, we have improved the conventional inductance method by using a low excitation frequency under a dc magnetic field generated by a neodymium (Nd) permanent magnet. The improved method was applied to the evaluation of a fatigue damage accumulation caused by partially pulsating stress in an iron-based structural metallic material (SS400). The new method was able to detect the change of the material condition such as a fatigue damage accumulation in SS400 without receiving the influence of the surface condition of the specimen. In this paper, we report the results of a fatigue damage accumulation evaluation using the new inductance method.

show abstract

Section: S-n Curve Of the Specimenmentioning

confidence: 99%

Examination of the Inductance Method for Non-Destructive Testing in Structural Metallic Material by Means of the Pancake-type Coil

Oka

Yakushiji

Tsuchida

et al. 2013

Journal of the Japan Society of Applied Electromagnetics and Me

View full text Add to dashboard Cite

show abstract

“…One effective method is residual magnetization, using a thin-film flux-gate (FG) magnetic sensor [7]. This method which we used in a previous study clearly detected material degradation in austenitic stainless steels caused by plane-bending fatigue damage [8,9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Material Degradation of Austenitic Stainless Steel under Pulsating Tension Stress Using Magnetic Method

Oka

Yakushiji

Enokizono³

2015

Journal of the Japan Society of Applied Electromagnetics and Me

View full text Add to dashboard Cite

To prevent a serious accident by the metal degradation of a structure made of iron-based structural materials, we have already proposed some fatigue evaluation methods for various iron-based structural materials. One of these is a residual magnetization method that uses a thin-film flux-gate magnetic sensor. This method is called the perpendicular residual magnetization method. This fatigue evaluation method had a good correlation between the magnetic sensor output signal and the amount of plane bending fatigue damage in the iron-based structural materials. However, we have not yet evaluated the pulsating tension fatigue damage of iron-based structural material such as the austenitic stainless steels using this method. In this paper, we report the evaluation results of a pulsating tension fatigue damage accumulation in austenitic stainless steels (SUS316 and SUS316L) using the perpendicular residual magnetization method. From our experiment, the maximum value of the Z component residual leakage magnetic flux density clearly depends on the magnitude of pulsating tension and the number of stress cycles.

show abstract

“…The magnetic characteristics of materials have been imaged by a variety of techniques, including conventional contact methods with sensitive magnetic field sensors, [1][2][3] electron microscopy techniques in which modification of electron motion by the Lorentz force is detected, 4 and optical methods which exploit the Kerr effect. 5 Scanning a surface with a sensitive magnetic field sensor provides direct information on the material surface, although it is generally difficult to maintain contact with rough surfaces and the technique is not suitable for environments subjected to magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Magnetic sensing via ultrasonic excitation

Yamada

Takashima

Ikushima

et al. 2013

Review of Scientific Instruments

View full text Add to dashboard Cite

We present ultrasonic techniques for magnetic measurements. Acoustically modulated magnetization is investigated with sensitive rf detection by narrowband loop antennas. Magnetization on the surface of ferromagnetic metals is temporally modulated with the rf frequency of the irradiated ultrasonic waves, and the near-field components emitted from the focal point of the ultrasonic beam are detected. Based on the principle of the acoustically stimulated electromagnetic (ASEM) response, magnetic sensing and tomography are demonstrated by ultrasonic scanning. We show that ASEM imaging combines good acoustic resolution with magnetic contrast. The sensitivity of this method is estimated to be about 6 G/Hz(1∕2) in our current setup.

show abstract

Fatigue dependence of residual magnetization in austenitic stainless steel plates

Cited by 12 publications

References 4 publications

Examination of the Inductance Method for Non-Destructive Testing in Structural Metallic Material by Means of the Pancake-type Coil

Examination of the Inductance Method for Non-Destructive Testing in Structural Metallic Material by Means of the Pancake-type Coil

Evaluation of the Material Degradation of Austenitic Stainless Steel under Pulsating Tension Stress Using Magnetic Method

Magnetic sensing via ultrasonic excitation

Contact Info

Product

Resources

About