Engineering Transactions, 54, 1, pp. 51--69, 2006
10.24423/engtrans.406.2006

Investigation of Material Properties by Means of Magnetic Methods

Józef Jan Rasek
University of Silesia
Poland

Zbigniew Stoklosa
University of Silesia
Poland

In the present paper, magnetic method of determination of ferrite content in austenite steels, based on saturation polarisation and magnetic polarisation of ferrite near the remanence point, have been presented for Fe-Cr-Ni-type alloys. Magnetic phase analysis, taking into account the distribution of total magnetic losses on eddy current losses, relaxation losses and hysteresis losses, have been discussed for low-carbon and low-alloy steels. The formulas on tangent angle of eddy current, hysteresis and relaxation (additional) losses have been presented. General formulas for magnetic permeability and coercive force have also been presented in terms of internal magnetic and material parameters. These parameters allowed to analyse the structural changes in magnetic materials. Examples of the influence of chemical composition, structural defects and thermal annealing on the changes of saturation polarisation, magnetic permeability, coercive force, magnetic hysteresis and relaxation losses have been discussed for low-carbon steels and amorphous alloys.
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Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).

References

and Hall, New York 1996.

H. Rawa, Electricity and magnetism in technique [in Polish], PWN, Warszawa 2001.

L.A. Dobrzański, Metallic engineering materials [in Polish], WNT, Warszawa 2002.

L. Vandeboshe, L. Dupre, M. De Wulf, J. Malkebeek, A magnetic technique for evaluation of mechanical deformation and its application to TRIP-steels, Soft magnetic materials, 233, Dusseldorf 2004.

Pietrzyk, A. Maksymowicz, G. Michta, Study of phase transitions in sled by means of magnetometry, Metallurgy and Foundry Engineering, 23, 343, 1997.

J. Pietrzyk, W. Osuch, G. Michta, Isothermal decay of austenite obtained in temperature between A3-A1 in 0.2%C, 1.5%Mn, 1.5%Si steel [in Polish], Materials Engineering, 1, 18, 1998.

H.J. Koh, S.K. Lee, S.H. Park, S.J. Choi, S.L. Kwon, N.J. Kim, Effect of hot rolling conditions on the microstructure and mechanical properties of Fe-C-Mn-Si multiphase steels, Scripta Materialia, 38, 763, 1998.

R.M. Bozorth, Ferromagnetism, IEEE Press, New York 1993.

J. Rasek, Some diffusion phenomena in crystalline and amorphous metals [in Polish], Silesian University Press, Katowice 2000.

J. Rasek, Properties of amorphous materials [in Polish], [in:] In the range of crystallography and material science, Silesian University Press, 207–245, Katowice 2002.

G. Bertotti, A.R. Ferchmin, E. Fiorillo, K. Fukamichi, S. Kobe, S. Roth, High purity iron and low carbon steels, Universitats Bibliothek, Hannover 1994.

K. Ishi, B. Cantor, The effect of adding Ti and Zr on the crystallization behaviour of amorphous Fe-Cr-B alloys, [in:] Trends in Non Crystalline Solids, A. CONDE, C. F. CONDE [Eds.], World Scientific Publishing Co, 161, Singapore 1992.

G. Herzer, Nanocrystalline soft magnetic materials, Journal of Magnetism and Magnetic Materials, 157/158, 133, 1996.

G. Herzer, L.L. Varga, Exchange softening in nanocrystalline alloys, Journal of Magnetism and Magnetic Materials, 215/215 506, 2000.

A. Alawska-Waniewska, Interface magnetism in Fe-based nanocrystalline alloys, Journal de Physique IV, 8, 11, 1998.

H. Kronmuller, Recent developments in high-tech magnetic materials, Journal of Magnetism and Magnetic Materials, 25, 140–144, 1995.

H. Kronmuller, Theory of the coercive field in amorphous ferromagnetic alloys, Journal of Magnetism and Magnetic Materials, 24, 159, 1981.

G. Socha, New method of detection and monitoring of initial stages of the fatigue accumulation in constructional steels [in Polish], Lapromat-Centre of Excellence, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warszawa 2004.

L. Dietrich, Development of structural damage and assessment of a state of material degradation [in Polish], [in:] Proceedings of Conference Testing of Mechanical Properties of Materials and Constructions, Lapromat-Centre of Excellence, Institute of Fundamental Technological Research, Polish Academy of Sciences, p. 9, Zakopane 2004.

J. Rasek, The kinetics of precipitation and resolution phenomena in Fe-N(C) solid solutions [in Polish], Silesian University, Katowice 1983.

B. Augustyniak, Magnetic methods of nondestructive assessment of microstructure of steels exploited at power plants [in Polish], [in:] Proceedings of Conference Testing of Mechanical Properties of Materials and Constructions, Lapromat-Centre of Excellence, Institute of Fundamental Technological Research, Polish Academy of Sciences, p. 209, Zakopane 2004.

Z. Stokłosa, J. Rasek, P. Kwapuliński, G. Haneczok, G. Badura, J. Lelątko, Nanocrystallisation of amorphous alloys based on iron, Material Science and Engineering C, 23, 49, 2003.

J. Dryzek, Introduction to positron annihilation methods in solid state, Jagiellonian University, Kraków 1997.

M.E. Mc Henry, M.A. Willard, D.E. Laughlin, Amorphous and nanocrystalline materials for applications as soft magnets, Progress in Materials Science, 44, 291, 1999.

M.E. Mc Henry, D.E. Laughlin, Nano-scale materials development for future magnetic applications, Acta Materiala, 48, 223, 2000.

A. Innoue, A. Making, T. Muzushima, Ferromagnetic bulk glassy alloys, Journal of Magnetism and Magnetic Materials, 215/216, 246, 2000.

T. Kulik, Nanocrystallization of metallic glasses, Journal of Non-Crystalline Solids, 287, 145, 2001.




DOI: 10.24423/engtrans.406.2006