Journal
PHYSICS OF METALS AND METALLOGRAPHY
Volume 119, Issue 2, Pages 180-190Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0031918X18020096
Keywords
nitrogen; nitrides; stainless steel; mechanical alloying; dynamic aging; Mossbauer spectroscopy
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Funding
- Ural Branch of the Russian Academy of Sciences [15-9-12-45]
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Methods of Mossbauer 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 Fe71.2Cr22.7Mn1.3N4.8 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.
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