Detection of structural materials' degradation by electromagnetic nondestructive methods

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Details of project

Identifier

35264

Type

Principal investigator

Vértesy, Gábor

Title in Hungarian

Szerkezeti anyagok degradációjának kimutatása elektromágne-ses elven alapuló roncsolásmentes módszerekkel

Title in English

Detection of structural materials' degradation by electromagnetic nondestructive methods

Panel

Engineering, Metallurgy, Architecture and Transport Sciences

Department or equivalent

MTA Research Institute for Technical Physics and Materials Science

Participants

Daróczi, Csaba Sándor
Gasparics, Antal
Gyimóthy, Szabolcs
Kádár, György
Pávó, József
Sebestyén, Imre
Veszely, Gyula

Starting date

2001-01-01

Closing date

2005-12-31

Funding (in million HUF)

13.440

FTE (full time equivalent)

0.00

state

closed project

Final report

Results in Hungarian

A kutatás során olyan mérési technikát fejlesztettünk tovább, ami a hagyományos örvényáramú mérést nagyérzékenységű mágneses térméréssel kombinálja. Mérések sorával igazoltuk a módszer előnyeit, a nagy mélységbeli felbontóképességet, valamint a megnövelt érzékenységet. Elvégeztük az örvényáramú szenzor kalibrációját és optimalizált mérési adatbázist készítettünk vezető anyagban keletkezett repedések rekonstrukciójához. Mágneses alapkutatásokat végeztünk a szenzor vasmag anyagának optimalizására, amely segítségével az eszköz működési paraméterei jelentősen javíthatók. Jelentős vastagságú (5-10 cm) vezető anyagok belsejében keletkezett repedések kimutatására javasoltunk egy új módszert, amely a mágneses szenzor előnyös tulajdonságait használja ki. Kimutattuk, hogy egyenáramú mágneses szenzorok alkalmazásával kiváló eredmény érhető el, amennyiben a vezetőn átfolyó áram mágneses terének az anyaghiba által okozott perturbációját mérjük. Az eljárás realizálhatóságának vizsgálatára számítógépes szimulációt készítettünk. Kidolgoztunk egy új, a mágneses hiszterézis alhurkok szisztematikus mérésén alapuló eljárást, ami a ferromágneses anyagokban bekövetkező szerkezeti változások nagy érzékenységű, roncsolásmentes nyomonkövetésére szolgál, és mérésekkel igazoltuk a módszer hatékonyságát. Megkezdtük az általunk kifejlesztett módszerek gyakorlatban történő alkalmazására irányuló fejlesztéseket.

Results in English

A novel technology has been developed within the project, which combines the conventional eddy current technique with high sensitivity magnetic field measurement. We have proved by series of measurements the advantageous features of this method, i.e. the improved depth resolution and sensitivity. The calibration of the eddy current sensor has been performed and measurement data base has been made for the reconstruction of the cracks in conductive materials. Magnetic basic research has been performed for the optimization of the sensing material. The operation parameters of the device can be improved by using these results. A novel method has been suggested for the detection of cracks, existing in the thick (5-10 cm) conductive material, by using the advantageous characteristics of magnetic field sensor. We have found that excellent result can be achieved if the perturbation of magnetic field, generated by the current, which flows through the material is measured. A numerical simulation has been presented for the realization of the method. We have developed a novel method, which is based on the systematic measurement of magnetic minor hysteresis loops. It is possible to follow the structural degradation of ferromagnetic materials by this nondestructive method. The effectivity of this method has been proved by measurements. We have started the development aiming the practical application of our methods.

Full text

http://real.mtak.hu/91/

Decision

Yes

List of publications

Y. Le Bihan, J. Pávó, C. Marchand: Calculation of the ECT signal of a minute crack by a FEM-BIM hybrid method, EPJ Applied Physics vol. 28 no. 3. (2004) pp. 355-360, 2004

H. Tsuboi, Sz. Gyimóthy, J. Pávó, I. Sebestyén: Defect Reconstruction in Eddy Current Testing Using Optimized Mesh Database, Annual Meeting Record, IEE Japan (japán nyelven), vol. 5, pp. 325-326, 2005

Sz. Gyimóthy, J. Pávó: Qualification of the inverse problem of defect reconstruction using optimized mesh database, COMPEL, vol. 24, pp. 436-442, 2005

H. Tsuboi, N. Seshima, I. Sebestyén, J. Pávó, Sz. Gyimóthy, A. Gasparics: Transient eddy current analysis of pulsed eddy current testing by finite element method, IEEE T Magnetics, vol. 40, pp. 1330-1333, 2004

Gy. Kádár, Zs. Szabó, G. Vértesy: Product Preisach model parameters from measured magnetization curves, Physica B, vol. 343, pp. 137-140, 2004

J. Füzi, G. Kádár: A micromagnetic nanoparticle model of multaxis anisotropy, Physica B, vol. 343, pp. 293-296, 2004

J. Pávó, A. Gasparics: Quantitative measurement of spatially strongly inhomogeneous magnetic fields, Proc. ENDE 2001 Conference, Kobe, Japan, (Ed.: F. Kojima) pp. 67-68, 2001

Sz. Gyimóthy, A. Vágvölgyi, I. Sebestyén: Application of optimally distorted finite elements for field calculation problems of electromagnetism, Proceedings of the 13th COMPUMAG conference (I), Evian (France), July 2-5, 2001, pp. 200-201, 2001

I. Sebestyén and J. Pávó: Flaw detection using DC magnetic field measurement, Applied Electromagnetics and Mechanics, (Eds.: T. Takagi), Proc 10th Int Symp Applied Electromagnetics and Mechanics, pp. 531-532, 2001

A. Zelenáková, P. Kollár Z. Vértesy, M. Kuzminski, D. Ramin, W. Rieheman: Influence of small circular holes on the coercivity and domain structure of finemet, Scripta Mater., vol. 44 , pp. 613-617, 2001

J. Pávó, O. Bíró and K. Hollaus: Calculation of the field map from the measurement date of the fluxset sensor, COMPEL, vol. 20, pp. 404-416, 2001

J. Pávó: Reconstruction of the Shape of Thin Metal Deposit on Plate Specimen, Applied Electromagnetics and Mechanics (Eds.: T. Takagi, M. Uesaka), Proc. 10th Int Symp Applied Electromagnetics and Mechanism, p. 483-484, 2001

Sz. Gyimóthy, I. Sebestyén, J. Pávó, A. Gasparics, H. Tsuboi: Comparison of some transient eddy-current codes and measured data, Proceedings of the 13th COMPUMAG conference (II), Evian (France), pp. 212-213., 2001

A. Vágvölgyi, Á. Böröczki, Sz. Gyimóthy, I. Sebestyén: Acoustic resonance in high pressure discharge lamp arc chambers, Applied Electromagnetics and Mechanics (Eds.: T. Takagi, M. Uesaka), Proc 10th Int Sym Applied Electromagnetics and Mechanics, pp. 214-212, 2001

Sz. Gyimóthy, A. Vágvölgyi, I. Sebestyén: Application of optimally distorted finite elements for field calculation problems of electromagnetism, IEEE Trans. Magn., vol. 38, pp. 365-368, 2002

J. Pávó: Numerical Calculation Method for Pulsed Eddy Current Testing, IEEE Trans. Magn., vol. 38 , pp. 1169-1172, 2002

G. Vértesy, I. Tomás, Z. Vértesy: On the temperature dependence of domain wall pinning field in soft, uniaxial magnetic materials, J. Phys. D: Appl. Phys., vol. 35, pp. 625-630, 2002

J. Pávó, I. Sebestyén, Sz. Gyimóthy, O. Bíró: Approximate Prediction of Losses in Transformer Plates, COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 22. pp. 689-702, 2003

A. Zelenakova, P. Kollár, M. Kuzminski, Z. Vértesy, W. Rieheman: Magnetic properties and domain structure investigation of laser treated Finemet, J. Magn. Magn. Mater., vol. 254-255, pp. 152-154, 2003

J. Füzi, Gy. Kádár: Frequency dependence in the product Preisach model, J. Magn. Magn. Mater., vol. 254-255 pp. 278-280, 2003

G. Vértesy, A. Gasparics: Fluxset sensor analysis, J. Electrical Engineering, vol. 53 pp. 53-55, 2002

G. Vértesy, A. Gasparics: Nondestructive Material Evaluation by Novel Electromagnetic Methods, Mat. Sci. Forum, 414 pp. 343-353, 2003

G. Vértesy, A. Gasparics, A. Süveges: Inspection of the welded parts of aluminium plates by Fluxset type ECT probe, Proc. EUROSENSORS XVI Conf., Praha, pp. 507-508, 2002

G. Vértesy: New way for nondestructive evaluation of ferromagnetic materials, The First International Workshop on Hierarchical Life Cycle Evaluation of Complex Systems, Sendai, Japan, 2002

A. Gasparics, G. Vértesy, J. Pávó: Fluxset Sensors in Non-destructive Material Evaluation, CNRS Tematic School: High sensitivity magnetometers, Portbail, Franciaország, 2002

G. Vértesy, A. Magni: Frequency dependence of coercive properties, J. Magn. Magn. Mater., vol. 265/1 pp. 7-12, 2003

G. Vértesy, I. Tomás: Temperature dependence of exchange parameter and domain wall properties, J. Appl. Phys., vol. 93 pp. 4040, 2003

G. Vértesy, I. Tomás: Effect of heat treatment on domain wall pinning sites in magnetic garnet films, J. Magn. Magn. Mater., vol. 264/2-3 pp. 214-220, 2003

I. Sebestyén: Electric Field Calculation for HV Insulators Using Domain Decomposition Method, IEEE Trans. Magn., vol. 38 pp. 1213-16, 2002

J. Pávó, A. Gasparics , I. Sebestyén, G. Vértesy: Calibration of Fluxset sensors for the measurement of spatially inhomogeneous magnetic fields, Sensor and Actuators A, vol. 110 pp. 105-111, 2004

M.J. Donahue, G. Vértesy, M. Pardavi-Horvath: Defect related switching field reduction in small magnetic particle arrays, J. Appl. Phys., vol. 93 pp. 7038-7040, 2003

Vértesy Gábor, Ivan Tomás: Ferromágneses anyagok roncsolásmentes vizsgálata új módszerrel, Anyagvizsgálók Lapja, 13. évf. 2. szám, 61. old., 2003

G. Vértesy, J. Pávó, A. Gasparics: A linear approach towards the calibration of magnetic field sensors for eddy current testing, MENDEL 2003 9th International Conference on Soft Computing, Brno, Czech Republic, pp. 315-320, 2003

A. Gasparics, G. Vértesy: Magnetic field sensor application for the measurement of insulation layer thickness, EUROSENSORS XVII. Conf. Proc., Guimaraes, Portugal, pp. 582-583, 2003

A. Gasparics, G. Vértesy, H. Huang, T. Takagi: Experimental studies on Fluxset probe for deep defects detection, Proc. of 9th ENDE Conf., Saclay, France, 2003

G. Vértesy, J. Pávó: Shape optimisation of the ferromagnetic core of Fluxset magnetometer, Proc. 2nd Int. Conf. on Soft Computing, Kunovice, Czech Republic, pp. 221-228, 2004

Zs. Szabó, I. Tugyi, G. Kádár: Identification procedures for Scalar Preisach Model, Physica B, vol. 343 pp. 256-59, 2004

Gy. Kádár, Zs. Szabó: Magnetization process as a combined function of field and temperature in the product model of hysteresis, J. Magn. Magn. Materials, vol. 272-276, pp. E547-549, 2004

Vértesy Gábor, Gasparics Antal, Pávó József: Elektromágneses roncsolásmentes anyagvizsgálat nagyérzékenységű mágneses térmérő szenzor alkalmazásával, Anyagvizsgálók Lapja, 15. évf. 2. szám, pp. 46-47, 2005

A. Gasparics, G. Vértesy, I. Sebestyén, D. Roger, T. Takagi: Performance analysis of the Fluxset based ECT probe on JSAEM Inconel 600 benchmark tube specimens, Electromagnetic Nondestructive Evaluation (V), Eds: J. Pávó, G. Vértesy, T. Takagi and S.Udpa, IOS Press, pp. 317-324, 2001

I. Sebestyén, J. Pávó, Sz. Gyimóthy and O. Bíró: Modeling of Nonlinear Material with Linear Inhomogeneous Medium for Loss Prediction of Transformer Cores, International Journal of Applied Electromagnetics and Mechanics, vol 19, pp. 427-431, 2004

I. Sebestyén: Optimization for High Voltage Composite Insulators Using Experimental Design Theory, Proc XI International Symposium on Electromagnetic Fields in Electrical Engineering (ISEF 2003) , Maribor, Slovenia vol.2, pp. 709-712, 2003

J. Pávó: Approximate methods for the calculation of the ECT signal of a crack in a plate coated by conducting deposit, IEEE Trans. Magnetics, vol. 40 pp. 659-662, 2004

P. Urban, B. Idzikowski, S. Kostyrya, Z. Vértesy, and B. Andrzejewski: Grain size distribution and thermal stability of surfactant stabilized Fe3O4 magnetic fluid, Czech. J. Phys. vol. 54, pp. D683-686, 2004

J. Pávó and Sz. Gyimóthy: Design method for optimal database used for inverse problems in ECT, Electromagnetic Nondestructive Evaluation, IOS Press: Amsterdam (Studies in Applied Electromagnetics and Mechanics, vol. 24, Eds. T. Solier et al.) pp. 69-76, 2004

G. Vértesy, I. Tomás: Coercive properties of epitaxial magnetic garnet films after heat treatment in reducing atmosphere, Phys. Stat. Sol. (c), vol. 1 pp. 1800-1804, 2004

G. Vértesy, I. Mészáros, I. Tomás: Non-destructive indication of plastic deformation of cold-rolled stainless steel by magnetic minor loops measurement, J. Magn. Magn. Mater., vol. 285/3 pp. 335-342, 2005

Z. Kalincsák, J. Takács, G. Vértesy, A. Gasparics: Local domain structure on the surface of carbon-steels in the vicinity of laser marking, Czech. J. Phys. vol. 54, pp. D687-690, 2005

G. Vértesy, A. Gasparics: Magnetic Field Sensor Application for the Measurement of Insulation Layer Thickness, The First International Symposium on Intelligent Artifacts and Bio-systems (1st INABIO), Sendai, Japan, 2004

G. Vértesy, T. Uchimoto, T. Takagi, I.. Tomás, O. Stupakov and J. Pávó: Characterization of cast iron by magnetic minor hysteresis loops measurements, 2DM Conference, Ghent, Belgium, 2004

I. Sebestyén, Sz. Gyimóthy, J. Pávó, O. Bíró: Calculation of losses in laminated ferromagnetic materials, IEEE T Magnetics, vol. 40, pp. 924-927, 2004

M. Bensetti, Y. Le Bihan, C. Marchand, J. Pávó: Deposit characterization by eddy current nondestructive evaluation, International Journal of Applied Electromagnetics and Mechanics, vol. 19 pp. 537-540, 2004

J. Pavo, D. Lesselier: Calculation of eddy current probe signal with global approximation, IEEE Transaction on Magnetics, közlésre elfogadva, 2006

G. Vértesy, T. Uchimoto, T. Takagi, I. Tomá¹, O. Stupakov, I. Mészáros, J. Pávó: Minor hysteresis loops measurements for characterization of cast iron, Physica B, vol. 372 pp. 156-159, 2006

G. Vértesy, B. Idzikowski: Amorphous and nanocrystalline Fe-Ni-Zr-B ribbons as sensing elements in magnetic field sensors, J. Magn. Magn. Mater., vol. 299 pp. 112-119, 2006

J. Pavo, L. Maurice, D. Premel, D. Lesselier: On the calculation of ECT signals due to thin cracks in a plate using a global approximation of the dipole density, International Symposium on Interdisciplinary Electromagnetic, Mechanic & Biomedical Problems, Bad Gastein, Austria , pp. 292-293, 2005

Sz. Gyimóthy, J. Pávó, H. Tsuboi: Conceptual evaluation of inversion models used for layered structures, IEEE Transactions on Magnetics (publikációóra elfogadva), 2005

Sz. Gyimóthy, J. Pávó: Optimized NDT database for training neural networks, Intl Symp Interdisciplinary Electromagnetic, Mechanic & Biomedical Problems, Bad Gastein, Austria, pp. 428-429., 2005

G. Vértesy, I. Tomá¹, I. Mészáros: Nondestructive indication of plastic deformation of cold-rolled stainless steel by magnetic adaptive testing, J. Magn. Magn. Mater, (publikációra beadva), 2006

Sz. Gyimóthy, J. Pávó: Optimized NDT database for training neural networks, International Journal of Applied Electromagnetics and Mechanics (publikációra beadva), 2006

G. Vértesy: Pulse position type fluxgate sensors, Encyclopedia of Sensors, Ed. C.A.Grimes, American Scientific Publishers, 2006

G. Vértesy: Optimization of material characterization by adaptive testing, Third International Conference on Soft Computing, Kunovice, Czech Republic, 2006

A. Gasparics, G. Vértesy, A. Gilányi, K. Morishita: Measurement of plastically deformed A533B specimen by Fluxset sensor applying DC and AC methods, Applied Electromagnetics and Mechanics (Eds.: T. Takagi and M. Uesaka), JSAEM, Tokyo, pp. 633-634, 2001

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