Peculiarities of tensile deformation and fracture of high-nitrogen steel obtained by electron beam additive manufacturing

Sergey V. Astafurov, Elena G. Astafurova, Kseniya A. Reunova, Evgenii V. Melnikov, Marina Yu Panchenko, Valentina A. Moskvina, Galina G. Maier, Valery E. Rubtsov, Sergey Yu Nikonov, Evgenii A. Kolubaev

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Regularities of plastic flow and fracture of high-nitrogen chromium-manganese steel, produced by conventional casting and electron beam additive manufacturing, were analyzed. Specimens of additively manufactured steel under tensile deformation fractured in brittle manner and has lower strain-hardening coefficient and elongation to failure in comparison with cast steel without differences in yield strength value. Microstructural analysis showed that these features of deformation and fracture of additively manufactured high-nitrogen steel are associated with its structural inhomogeneity, which promotes the heterogeneous stress distribution in the bulk of material.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology
EditorsVictor E. Panin, Vasily M. Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440463
DOIs
Publication statusPublished - 14 Dec 2020
Externally publishedYes
EventInternational Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2020 - Tomsk, Russian Federation
Duration: 5 Oct 20209 Oct 2020

Publication series

NameAIP Conference Proceedings
Volume2310
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology 2020
CountryRussian Federation
CityTomsk
Period5.10.209.10.20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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