Structure, Phase Composition, and Mechanical Properties of a Boron-Containing High-Nitrogen Austenitic Steel Made by Induction Melting

The structure and the mechanical properties of a cast high-nitrogen austenitic steel are studied after hot and cold deformation. The as-cast steel contains the FeCrB and BN phases. During hot deformation, the B 13 N 13 C 74 phase forms. This phase has a layered structure and is easily deformed durin...

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Bibliographic Details
Published in:Russian metallurgy Metally 2020-12, Vol.2020 (12), p.1439-1445
Main Authors: Bannykh, I. O., Bannykh, O. A., Rigina, L. G., Blinova, E. N., Demin, K. Yu, Lukina, I. N.
Format: Article
Language:English
Subjects:
Certification
Chemistry and Materials Science
Competitive Ability of Metal Products
Materials Science
Metallic Materials
Quality
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Summary:The structure and the mechanical properties of a cast high-nitrogen austenitic steel are studied after hot and cold deformation. The as-cast steel contains the FeCrB and BN phases. During hot deformation, the B 13 N 13 C 74 phase forms. This phase has a layered structure and is easily deformed during hot or cold rolling. The existence of the B 13 N 13 C 74 phase only slightly changes the strength and the ductility, but it substantially decreases the impact toughness of the steel as compared to that of similar boron-free Cr–Mn–Ni high-nitrogen austenitic steels.
ISSN:0036-0295
1555-6255
DOI:10.1134/S003602952012006X