Application of Cube-Oriented 3% Si–Fe Steel in Cores for Rotating Machines

Abstract

As compared to AISI Grade M-15 electrical steel, the use of cube textured 3% Si–Fe steel, 0.012-in. thick, as limination material in cores of 400-Hz generators covering ratings between 15 and 90 kVA, brought about improvements in generator weight, stack length, efficiency, and voltage transients. Conventional core fastening and stress-relief annealing practices were applicable, but stress concentrations during lamination punching had to be minimized in order to prevent cleavage cracks in the highly cube-textured material.

First-principles calculations of phonon and thermodynamic properties of Fe-Si compounds

“…Silicon steel (silicon content 1w7 at.%) is widely used in transformers and motors due to its excellent soft magnetic properties [2]. A2/B2 and B2/D0 3 phase transitions that take place in the bcc solid solution of Fe are important to describe the ordering processes [3,4].…”