Preparing Fe–Ga sheets with excellent magnetostrictive coefficients by rolling and annealing methods can greatly promote the development of high-efficiency devices. 0.3 mm thick thin sheet was produced one-stage large-reduction cold method without intermediate annealing. Trace V Nb elements addition improves formability precipitating a large number (Nb,V)C particles. The evolution precipitation...

An identiication method for Preisach-type models of hysteresis is presented. By using a phenomenological Preisach-type model for hysteresis we can obtain an exact model for the magnetisation hysteresis in the cases of tapes with strip and with elliptical cross section geometries. With a parametrisation by Maclaurin series, it is possible to identify such a model for any other geometry. An addit...

— In electromagnetic applications, hysteresis phenomena in magnetic materials are responsible of considerable causes of losses especially in transformer modelling cases. In specific case, such as current sensor, the output signal can be modified because of this loss. The paper presents the implementation proceeding used for some hysteresis material models and how they are applied in a sensor st...

This paper investigates the behaviour of multiple decision-maker organisations or bodies, operating in a stochastic environment. Behaviour with a delegated decision maker is examined. A crucial decision is when to delegate to another decision maker. The problem may be intrapersonal, as occurs when there are endogenously changing tastes, or interpersonal where delegation is intuitionally necessa...

In this study, the cold rolling microstructure and static recrystallization mechanism of high strength titanium alloy Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe were systematically investigated. Results show that is mainly composed elongated deformed ? grains containing micro-shear bands. After annealing at 815 °C for 2 min, fine SRXed are observed, concentrated in band, grain boundary interior grain. The s...

The influences of cold rolling and subsequent heat treatment on the microstructure evolution 2524 alloy were investigated using an orientation distribution function (ODF) electron back-scattered diffraction (EBSD). A preparation method 2524-T3 aluminum with a strong Brass texture was developed, its effect fatigue properties scanning microscopy (SEM) transmission (TEM). results show that increas...

The rotor power losses in magnetic bearings are due to eddy currents, hysteresis, and windage. The influence of air gap magnetic flux density and air gap thickness is not well understood at this time. This paper presents measured results in two magnetic bearing radial configurations with a laminated rotor. The rotor power losses were evaluated by measuring the rundown speed of the rotor, in air...