A Multistep Processing of Fe-Si Steel

Electric motors consume about 70% of generated
electricity worldwide. With an increase in power
consumption the improvements in the efficiency of AC
motors will have major energy savings. Higher
efficiency can be achieved in thin sheet of Fe-Si
steel with ~150 microns grain size and a 100 fiber
texture normal to the sheet, which maximizes the
easy magnetization direction in the sheet. The Goss
texture with a single easy magnetization direction
in the Fe-Si sheet has been produced for
transformers for many years by multistage
processing, but the desired texture for motors has
not yet been produced by any multistage processing.
This technological challenge is addressed in the
book through detailed studies of the deformation and
recrystallization processes in continuously cast and
directionally solidified Fe-Si alloys, with columnar
grain structure with the desired fiber texture. A
multistep thermomechanical processing has been
successfully developed for recovery of preferred
100 fiber texture. This book should be useful to
senior students of metallurgy, materials science and
engineering and to researchers in laboratories and
industry.

Autorentext
Dejan Stojakovic has earned his PhD in physical and mechanical
metallurgy from the Department of Materials Science and
Engineering at Drexel University, USA and BS in mechanical
engineering with major in manufacturing from the University of
Novi Sad, Serbia. Currently, he is a Senior Research Scientist
in Williams Advanced Materials, USA.

Klappentext
Electric motors consume about 70% of generated electricity worldwide. With an increase in power consumption the improvements in the efficiency of AC motors will have major energy savings. Higher efficiency can be achieved in thin sheet of Fe-Si steel with ~150 microns grain size and a 100 fiber texture normal to the sheet, which maximizes the easy magnetization direction in the sheet. The Goss texture with a single easy magnetization direction in the Fe-Si sheet has been produced for transformers for many years by multistage processing, but the desired texture for motors has not yet been produced by any multistage processing. This technological challenge is addressed in the book through detailed studies of the deformation and recrystallization processes in continuously cast and directionally solidified Fe-Si alloys, with columnar grain structure with the desired fiber texture. A multistep thermomechanical processing has been successfully developed for recovery of preferred 100 fiber texture. This book should be useful to senior students of metallurgy, materials science and engineering and to researchers in laboratories and industry.