Investigation of the Property Change in FINEMET Alloy After Conventional, Pulse and Mechanical Stress Annealing

Szabó, Attila and Sánta, Róbert and Lovas, Antal and Novák, László (2020) Investigation of the Property Change in FINEMET Alloy After Conventional, Pulse and Mechanical Stress Annealing. ACTA MATERIALIA TRANSYLVANICA (EN), 3 (1). pp. 43-49. ISSN 2601-8799

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Abstract

In the present work the comparison of the effect of traditional, pulse and stress annealing is made by monitoring the important mechanical and magnetic properties of FINEMET type amorphous precursor alloy. The magnetic properties were determined from the shape of magnetization curve (coercive force, anisotropy) during various heat treatments and the mechanical properties were measured using brittleness test. The traditional heat treatments were performed in resistance furnace and the magnetic measurements were performed in astatic magnetometer. The pulse and stress annealing (as well as their combinations) were carried out inside in the magnetometer. The temperature of pulse heat treatments is regulated with the length of current pulse flowing through the sample. After each pulses the magnetization curves were measured in-situ, in the magnetometer.

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