Magnetic Properties of Fe-6.%Si Alloy Obtained by Spray Forming

  1. Prof. Dr. P. Neumann3,
  2. Dr. D. Allen4 and
  3. Prof. Dr. E. Teuckhoff5
  1. Mário Cézar Alves da Silva1,
  2. Claudemiro Bolfarini2 and
  3. Claudio Shyinti Kiminami2

Published Online: 5 JAN 2006

DOI: 10.1002/3527606181.ch18

Steels and Materials for Power Plants, Volume 7

Steels and Materials for Power Plants, Volume 7

How to Cite

Alves da Silva, M. C., Bolfarini, C. and Shyinti Kiminami, C. (2000) Magnetic Properties of Fe-6.%Si Alloy Obtained by Spray Forming, in Steels and Materials for Power Plants, Volume 7 (eds P. Neumann, D. Allen and E. Teuckhoff), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606181.ch18

Editor Information

  1. 3

    Max-Planck-Institut für Eisenforschung, Max-Planck-Str. 1, 40237 Düsseldorf, Germany

  2. 4

    ABB Asltom Power UK Ltd., Cambridge Road, Whetstone, Leicester LE9 GLH, United Kingdom

  3. 5

    Siemens AG, Postfach 3240, 91050 Erlangen, Germany

Author Information

  1. 1

    Federal Center of Technological Education of Maranhão, Brazil

  2. 2

    Federal University of São Carlos, Brazil

Publication History

  1. Published Online: 5 JAN 2006
  2. Published Print: 27 JUN 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301959

Online ISBN: 9783527606184



  • steels for power plants;
  • materials for power plant;
  • magnetic properties of Fe-6.%Si alloy;
  • orientation by spray forming


Deposit of the Fe-6.%Si alloy was obtained by spray forming process. The deposit presented interesting soft magnetic properties, singular microstructure and random crystallographic texture. After annealing at 1250°C for 1 h under vacuum, the surface grain became parallel to (100) crystal plane and the power loss (PT) decreased, while the maximum magnetic permeability (µmax) increased. The best magnetic properties were: a power loss of 1.40 W/kg, maximum magnetic permeability of 15270 and coercive force of 41 A/m, at B=1T, f=60 Hz by using 0.60mm thick rings. Higher annealing temperatures caused deterioration of these properties. Correlation between magnetic properties and microstructure in as-cast and annealed condition were established. The properties obtained were considerable better than those presented by commercial non-oriented Fe-3wt%Si steel sheets, and the deposits are isotropic, which make them attractive for applications in rotating devices and small power transformers.