Thermal Behavior of Iron-Nickel-Chromium Alloys and Correlation with Magnetic and Physical Properties- Part A: Static Effects Modeling
Résumé
Magnetic materials are required to perform in environmental conditions, which are becoming more and more stringent. Of the environments to be considered, temperature has the most deleterious effect on magnetic cores. For a better knowledge of the thermal behavior of ferromagnetic materials, it is expedient to resort to a temperature dependent behavioral model. In this paper, we propose a new temperature dependent model based on an extension of modified Weiss and Jiles-Atherton theories. The proposed model generates meaningful sets of J-A parameters versus temperature. Simulation results are compared to quasi-static measurements made on two iron-nickel-chromium soft magnetic alloys. Results are in good agreement.