The change in solidification mode and phase composition in “321 stainless steel/NiCr alloy” joint produced by wire-feed electron beam melting

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

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

Abstract

The influence of variation of Ni content on solidification mode, phase composition and microstructure in additively-manufactured (AM) “321 stainless steel/NiCr alloy” joint has been investigated. The typical for additively-manufactured CrNi stainless steel two-phase (Ȗ + į) microstructure observed in the “321-SS” area passes into the pure Ȗ-austenite structure when it is stabilized by nickel in the joint “321-SS/NiCr alloy” of the AM billet. The gradual increase in of Ni-concentration in the joint region is accompanied with progressive decrease the value of the Creq/Nieq ratio and alteration of the phase composition and microstructure of the steel part. The change in the primary solidification mode from ferrite into austenite mode occurs in the joint “321-SS/NiCr alloy” when the Creq/Nieq ratio value becomes below the critical one.

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)

Fingerprint Dive into the research topics of 'The change in solidification mode and phase composition in “321 stainless steel/NiCr alloy” joint produced by wire-feed electron beam melting'. Together they form a unique fingerprint.

Cite this