Structure and properties of high strength and ductile Ti-Fe-Cu-Nb-Sn alloys

Dmitri V. Louzguine-Luzgin, Larissa V. Louzguina-Luzgina, Takanobu Saito, Guoqiang Xie, Akihisa Inoue

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

High-strength Ti-Fe-Cu, Ti-Fe-Cu-Nd, Ti-Fe-Cu-Sn and Ti-Fe-Cu-Nd-Sn alloys were produced in the shape of arc-melted ingots with the dimensions of about 30 mm in diameter and 10 mm in height. The structure of these alloys consists of an ordered cP2 Ti(Fe,Cu) intermetallic compound and a disordered BCC cI2 β-Ti solid solution. The high strength values result from the high Fe and Cu contents in the supersaturated β-Ti solid solution (solution hardening) and high hardness of the Ti(Fe,Cu) intermetallic compound having a rounded morphology. The high strength and ductility values can be achieved without using the injection mould casting or rapid solidification procedure. Fine structure of the studied alloys, their deformation behavior and the fractography are also studied.

Original languageEnglish
Pages (from-to)126-131
Number of pages6
JournalMaterials Science and Engineering A
Volume497
Issue number1-2
DOIs
Publication statusPublished - 2008 Dec 15

Keywords

  • Mechanical properties
  • Scanning electron microscopy
  • Ti alloys
  • Transmission electron microscopy
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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