Development of Magnetic After-Effect Setup and Application in the Study of Relaxation Processes in Fe-C, Fe-Cu and Fe-Cr Alloys

• Autorzy: Minov, B. , Konstantinovic, M.J. , Dupre, L.

Warianty tytułu

PL

System do badania procesów relaksacyjnych w stopach Fe-C, Fe-Cu i Fe-Cr

• Języki publikacji: EN

Abstrakty

EN

A magnetic after-effect setup, based on an open magnetic circuit, is developed and presented. The magnetic after-effect experiment aims to determine the time and temperature dependence of the initial susceptibility, which is obtained by an AC measurement of the mutual inductance. After sample demagnetization, the change of the time dependent initial susceptibility is measured for particular ferromagnetic materials at a chosen temperature. The setup is applied for the investigation of relaxation processes of dislocations and carbon atoms in Fe-C, Fe-Cu and Fe-Cr alloys.

PL

Przedstawiono układ do badania lepkości magnetycznej w obwodach otwartych. Badano początkową susceptancję jako funkcję temperatury i czasu. Analizowano procesy relaksacyjne w stopach Fe-C, Fe-Cu i Fe-Cr.

Słowa kluczowe

PL

after-efekt; lepkość magnetyczna; początkowa susceptancja; elektrotechnika; elektroenergetyka

EN

magnetic after-effect; initial susceptibility; Fe-based alloys; electrical technology; electrical power engineering

• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 9b
• Strony: 120-123
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Minov, B.

autor

Konstantinovic, M.J.

autor

Dupre, L.

• Department of Electrical Energy, Systems and Automation/Belgian Nuclear Research Centre, Boeretang 200, B-2400 Mol, Belgium,

Bibliografia

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• [2] Walz F., Weller M., Hircher M., Magnetic After-Effect and Internal Friction as Quantitative Tools for the Analysis of Carbon and Nitrogen in ?-Iron, Phys. Stat. Sol. A, 154 (1996), 765
• [3] Blythe H.J., Kronmüller H., Seeger A., Walz F., A Review of the Magnetic Relaxation and Its Application to the Study of Atomic Defects in ?-Iron and Its Diluted Alloys, Phys. Stat. Sol. A, 181 (2000), No. 2, 233-345
• [4] Jiles. D, Introduction to Magnetism and Magnetic Materials, Chapman and Hall, London (1991)
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• [7] Matijasević M., Almazouzi A., Effect of Cr on the mechanical properties and microstructure of Fe–Cr model alloys after nirradiation, J. Nucl. Mater., 377 (2008), No. 1, 147-154
• [8] Nowick S.A. and Berry B.S., Anelastic Relaxation in Crystalline Solids, Academic Press, New York/London (1972)
• [9] Walz F. and Blythe H.J., Evidence for a two-interstitial annealing mechanism in ?-Fe based on magnetic after-effect measurments, Cryst. Latt. and Amorph. Mat., 17 (1988), 373- 403
• [10] Konstantinović M.J., Interplay of dislocation-related relaxation processes in iron-based materials, Phys. Rev. B, 78 (2008), No. 5, 052104