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The Influence of Heat Treatment on the Magnetization Process (within Strong Magnetic Fields) for the Alloy: Fe61Co10Y8Cu1B20

Gruszka K., Nabiałek M., Błoch K.

Archives of Metallurgy and Materials

2016

Vol. 61, iss. 2A

499--502

Samples of Fe61Co10Y8Cu1B20 alloy were investigated in the ‘approach to ferromagnetic saturation’ region by using the Kronmüller method. The amorphous material was obtained by radially cooling the molten alloy under a protective atmosphere of inert gas. Following this manufacturing process, static magnetic hysteresis loops were measured for samples, before and after a controlled isothermal annealing process, using a LakeShore vibrating magnetometer (VSM). From analysis of the primary magnetization curves, the distribution of structural defects and the average exchange distance for these defects were determined.

Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe62Co10Y8B20 alloy

Gruszka K. M., Nabiałek M., Błoch K., Olszewski J.

Nukleonika

2015

Vol. 60, No. 1

23--27

Thermal treatment, undertaken at just below the crystallization temperature, has led to nanocrystallization and has had a signifi cant impact on the shape of the hyperfine field induction distributions of Fe62Co10Y8B20 alloy and on its soft magnetic properties. In the amorphous ferromagnetic alloys, it is possible to indirectly determine the effect of the structure stresses, resulting from the presence of structural defects, on the soft magnetic properties of these materials. It has been found that a change in the parameters associated with the presence of structural defects affects the shape of the hyperfi ne fi eld distributions of 57Fe.