Microstructure of Hard Magnetic FeCr22Co15 Alloy Subjected to Tension Combined with Torsion at High Temperatures

Anna Korneva; Galija Korznikova; Rishat Kashaev; Krzysztof Sztwiertnia

doi:10.4028/www.scientific.net/SSP.203-204.284

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Microstructure of Hard Magnetic FeCr22Co15 Alloy Subjected to Tension Combined with Torsion at High Temperatures

Abstract:

The paper presents the results of microstructure evolution studies of hard magnetic FeCr22Co15 alloy, destructed by tension and torsion at 800 and 850°C. The temperatures and deformation rates corresponded to the condition of superplasticity of Fe-Cr-Co alloys. Observations of longitudinal section of deformed samples in scanning electron microscope showed a formation of weak gradient microstructure with highest grain refinement in the surface layer of material. Precipitation of intermetallic σ-phase was also observed, with its maximum amount in zones of the highest deformation.

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Periodical:

Solid State Phenomena (Volumes 203-204)

Pages:

284-287

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.203-204.284

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Online since:

June 2013

Authors:

Anna Korneva, Galija Korznikova, Rishat Kashaev, Krzysztof Sztwiertnia

Keywords:

Gradient Microstructure, Hard Magnetic Alloy, High Temperature Deformation, Interface Segregation

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