Deformation-Induced Dissolution and Precipitation of Nitrides in Austenite and Ferrite of a High-Nitrogen Stainless Steel

Methods of Mössbauer spectroscopy and electron microscopy have been used to study the effect of the severe plastic deformation by high pressure torsion in Bridgman anvils on the dissolution and precipitation of chromium nitrides in the austenitic and ferritic structure of an Fe 71.2 Cr 22.7 Mn 1.3 N...

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Bibliographic Details
Published in:Physics of metals and metallography 2018-02, Vol.119 (2), p.180-190
Main Authors: Shabashov, V. A., Makarov, A. V., Kozlov, K. A., Sagaradze, V. V., Zamatovskii, A. E., Volkova, E. G., Luchko, S. N.
Format: Article
Language:English
Subjects:
Aging (metallurgy)
Anvils
Chemistry and Materials Science
Chromium nitride
Deformation effects
Dissolution
Electron microscopy
Ferrites
Ferritic stainless steels
Materials Science
Metallic Materials
Mossbauer spectroscopy
Plastic deformation
Strength and Plasticity
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Summary:Methods of Mössbauer spectroscopy and electron microscopy have been used to study the effect of the severe plastic deformation by high pressure torsion in Bridgman anvils on the dissolution and precipitation of chromium nitrides in the austenitic and ferritic structure of an Fe 71.2 Cr 22.7 Mn 1.3 N 4.8 high-nitrogen steel. It has been found that an alternative process of dynamic aging with the formation of secondary nitrides affects the kinetics of the dissolution of chromium nitrides. The dynamic aging of ferrite is activated with an increase in the deformation temperature from 80 to 573 K.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X18020096