In Situ Formation of TiB2 in Fe-B System with Titanium Addition and Its Influence on Phase Composition, Sintering Process and Mechanical Properties

Mateusz Skalon, Marek Hebda, Benedikt Schrode, Roland Resel, Jan Kazior, Christof Sommitsch*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Interaction of iron and boron at elevated temperatures results in the formation of an E (Fe + Fe2B) eutectic phase that plays a great role in enhancing mass transport phenomena during thermal annealing and therefore in the densification of sintered compacts. When cooled down, this phase solidifies as interconnected hard and brittle material consisting of a continuous network of Fe2B borides formed at the grain boundaries. To increase ductile behaviour, a change in precipitates’ stoichiometry was investigated by partially replacing iron borides by titanium borides. The powder of elemental titanium was introduced to blend of iron and boron powders in order to induce TiB2 in situ formation. Titanium addition influence on microstructure, phase composition, density and mechanical properties was investigated. The observations were supported with thermodynamic calculations. The change in phase composition was analysed by means of dilatometry and X-ray diffraction (XRD) coupled with thermodynamic calculations.
Original languageEnglish
Article number4188
Number of pages12
Issue number24
Publication statusPublished - 13 Dec 2019


  • titanium diboride
  • titanium
  • boron
  • iron
  • Dilatometry
  • liquid phase
  • phase composition
  • sintering

ASJC Scopus subject areas

  • Metals and Alloys

Fields of Expertise

  • Advanced Materials Science

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