Fine structure and phase composition of Fe–14Mn–1.2C steel: influence of a modified mixture based on refractory metals

Anna Zykova, Natalya Popova, Mark Kalashnikov, Irina Kurzina

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The effect of TiO2, ZrO2 and Na3AlF6 ultrafine powders on the fine structure and the phase composition of Fe–14Mn–1.2C steel was investigated. The introduction of the ultrafine powders into the melt influenced the grain size, the quantity, and the character of distribution of nonmetallic inclusions in the railroad frogs. The microstructure of castings was improved significantly because of the refinement of the grain structure and an increase of the grain-boundary area. After the modifying mixture was introduced into the melt, either the microtwins of one or two intersecting systems or the precipitations of ε-martensite of different types, or simultaneously the microtwins and wafers of ε-martensite, were present in each grain.

Original languageEnglish
Pages (from-to)523-529
Number of pages7
JournalInternational Journal of Minerals, Metallurgy and Materials
Volume24
Issue number5
DOIs
Publication statusPublished - 1 May 2017

Keywords

  • fine structure
  • manganese steel
  • phase composition
  • refractory metals

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Geochemistry and Petrology
  • Metals and Alloys
  • Materials Chemistry

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