Effect of Equal Channel Angular Pressing and Subsequent Annealing on Magnetic Properties of a Soft Magnetic Fe–Co Alloy


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Abstract

The effect of severe plastic deformation on the microstructure and magnetic properties of a soft magnetic precision alloy 27KKh has been studied. Severe plastic deformation by equal-channel angular pressing has been used. It has been shown that equal-channel angular pressing that forms a fine-grain structure of the material leads to its magnetic hardening. The annealing of strongly deformed samples made it possible to significantly improve the magnetic characteristics. The magnetic permeability was increased by more than three times compared to the treatment that is carried out according to GOST State Standard 10160–75.

About the authors

A. I. Korshunov

Russian Federal Nuclear Center

Email: assa@astra.vniief.ru
Russian Federation, Sarov, 607188

N. I. Osipova

Russian Federal Nuclear Center

Author for correspondence.
Email: assa@astra.vniief.ru
Russian Federation, Sarov, 607188

A. M. Olenin

Russian Federal Nuclear Center

Email: assa@astra.vniief.ru
Russian Federation, Sarov, 607188

Yu. N. Pigarev

Russian Federal Nuclear Center

Email: assa@astra.vniief.ru
Russian Federation, Sarov, 607188

O. V. Kulakova

Russian Federal Nuclear Center

Email: assa@astra.vniief.ru
Russian Federation, Sarov, 607188

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