Effect of B addition to hypereutectic Ti-based alloys

Larissa V. Louzguina-Luzgina, Dmitri V. Louzguine-Luzgin, Akihisa Inoue

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The structure and mechanical properties of Ti-Fe-B and Ti-Fe-Co-B alloys produced in the shape of the arc-melted ingots of about 25 mm diameter and 10 mm height are studied. The hypereutectic alloys showed excellent compressive mechanical properties. The structures of the high-strength and ductile hypereutectic alloys studied by X-ray diffractometry and scanning electron microscopy were found to consist of the primary cubic cP2 intermetallic compound (TiFe-phase or a solid solution on its base) and a dispersed eutectic consisting of this cP2 intermetallic compound + BCC cI2 β-Ti supersaturated solid solution phase. The addition of B increased mechanical strength. Si causes embrittlement owing to the formation of alternative intermetallic compounds. The structure and deformation behaviour were studied.

Original languageEnglish
Pages (from-to)131-133
Number of pages3
JournalJournal of Alloys and Compounds
Volume474
Issue number1-2
DOIs
Publication statusPublished - 2009 Apr 17

Keywords

  • Ductility
  • High strength
  • Intermetallic compound
  • Mechanical properties
  • Ti-based alloys

ASJC Scopus subject areas

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

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