Fatigue Evaluation for a Ferritic Stainless Steel (SUS430) by the Eddy Current Method Using the Pancake-Type Coil

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

doi:10.1109/tmag.2009.2033710

Cited by 12 publications

(8 citation statements)

References 4 publications

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“…9 (b) shows the same relation as Fig. 8 (a), when N was 2x10 6 . In these cases, Nd magnets were not installed.…”

Section: S-n Curve Of the Specimensupporting

confidence: 64%

“…In such a research situation, our group has researched which deterioration in stainless steels and low carbon steel is evaluated by the residual magnetization method [5] and the eddy current testing (ECT) method. In our previous research results, the ECT method attained good results in the detection of fatigue in the metallic components caused by the plane bending fatigue and partially pulsating stress [6,7].…”

Section: Introductionmentioning

confidence: 99%

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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

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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.

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“…9 (b) shows the same relation as Fig. 8 (a), when N was 2x10 6 . In these cases, Nd magnets were not installed.…”

Section: S-n Curve Of the Specimensupporting

confidence: 64%

Section: Introductionmentioning

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

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this case, the phase angle was measured by the linear effect of distance between the tested surface of the steel sheet and probe. This parameter is dependent on many factors, such as: internal stress changes, local changes in the composition, density or the phase composition [2][3][4][5][6][7], and therefore an attempt was made to use it to identify changes in the rolling surface. The measurement of the phase angle was made using the software available in the commercial Zetec device.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Microstructural Changes of S235 Steel after Rolling on the Basis of Microscopic Observations and Eddy Current Non-Destructive Method

Kukla

Bałkowiec

Grzywna

2014

Advances in Materials Science

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The aim of the study was to determine the microstructure and residual stress changes which appears in the S235 steel (which is designed for operating in elevated temperatures) during cold rolling. The changes of orientation, both morphological and crystallographic, are occurring as a result of the rolling process. Analysis of the results allowed to determine the change in grain morphology (size, shape), determination of grain morphology of the rolling direction and determination of crystallographic texture. The dislocation density present in the material before and after the cold rolling process was estimated on the basis of dislocation structure images obtained via transmission electron microscope. The observed microstructural changes were correlated with the results of nondestructive testing using eddy current method. They allowed for the identification of the state of stress measured on three different surfaces of the rolled sheet (parallel and perpendicular to the rolling direction). As the result the usability of using the non -destructuve techniques of stress level determination was proved.

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“…Current systems for detecting materials damage are: the acoustic emission technique [2], ultrasound techniques [8], acousto-ultrasonic sensing using fiber Bragg gratings [1], laser vibrometry [7], digital image correlation [9], Eddy's current method [5], penetration methods [11], radiographic methods [6] and subjective visual methods. There are not many methods for quickly detecting material damages in the conditions of magnetic and electrical disturbances as well as flammable and chemically aggressive ones.…”

Section: Introductionmentioning

confidence: 99%

The Method of Detecting Inhomogeneities and Defects in Materials Using Sensors Based on the Fiber Bragg Optic Structures

Zychowicz

2019

IAPGOS

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The article presents the possibilities of detecting defect in materials using the fiber Bragg gratings (FBG). Steel belts with a thickness of 1 mm were used for the tests: one standard and the others were damaged. The damage was in the form of incisions. The FBG was glued to the sample with epoxy glue along its entire length and elongation by outside force. Based on the transmission spectrum obtained on the Optical Spectrum Analyzer (OSA) the processing characteristics: the main minimum on the transmission characteristics, total width of the spectrum and the full width at half maximum FWHM depending on the FBG strain was determine.

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Fatigue Evaluation for a Ferritic Stainless Steel (SUS430) by the Eddy Current Method Using the Pancake-Type Coil

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 Microstructural Changes of S235 Steel after Rolling on the Basis of Microscopic Observations and Eddy Current Non-Destructive Method

The Method of Detecting Inhomogeneities and Defects in Materials Using Sensors Based on the Fiber Bragg Optic Structures

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