Anisotropy in Some Soft Magnetic Materials

Abstract

Orientation distribution data are presented for low carbon steel and silicon iron after different rolling and annealing schedules. Magnetic properties which depend solely on orientation can be well described using such distributions. A general analysis is demonstrated by which other properties may be divided into two components which are respectively dependent and independent of orientation. An example of this, a.c. power loss, is considered in detail. It is shown that the orientation-dependence of power loss derives entirely from the hysteresis component. The classical eddy current loss together with an 'anomalous' loss of similar magnitude cons;itute the orientationindependent part. The analysis may be used to predict properties under a range of conditions in textured materials.

Effect of hot band grain size on development of textures and magnetic properties in 2.0% Si non-oriented electrical steel sheet

“…Accordingly, <100> is the easiest direction and <111> the hardest direction for magnetization [1][2][3]. As reported elsewhere [10][11][12]18,41,42], the dependency of the magneto- The values of () Ah were calculated from the annealing textures of both samples for seven inplane angles . In Fig.…”

“…The magnetic properties of NO electrical steels are influenced by the chemical composition [4,5], sheet thickness [6,7], grain size [8][9][10] and crystallographic texture [10][11][12] of the annealed final products [13,14].…”

A multi-length scale sensitivity analysis for the control of texture-dependent properties in deformation processing

“…Power losses also occur due to eddy currents. The total power loss can be expressed as a function of the external magnetization direction h by the expression (Hutchinson and Swift, 1972):…”

Modern methods of texture analysis

“…Maximum deviation between calculated and measured results was approximately 10%. Hutchinson & Swift (1972) used Williams's (1968) analysis to calculate magnetic torque curves for cold-rolled and annealed rimming steel specimens, and compared measured and calculated curves. They assumed K4=4-20 x 105 and K6=l-50x 105 erg cm -3.…”