Effect of Zr and Si addition on high temperature mechanical properties of near-α Ti-Al-Zr-Sn based alloys

M. Jayaprakash, D. H. Ping, Y. Yamabe-Mitarai

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

The mechanical properties and microstructural evolution of Ti-Al-Zr-Sn based near α-Ti alloys with various amounts of Zr and Si have been systematically investigated. The compression test results reveal that higher contents of Zr and Si can improve the yielding strength both at room temperature and high temperature (650°C). The enhanced yield strength was found to be contributed mainly by fine silicide precipitates (Ti5Si3). Zr was enriched in the silicide formed at α-lath boundaries. The microstructural characterization of the alloys with various alloying elements has been studied using transmission electron microscopy (TEM).

Original languageEnglish
Pages (from-to)456-461
Number of pages6
JournalMaterials Science and Engineering A
Volume612
DOIs
Publication statusPublished - 2014 Aug 26
Externally publishedYes

Keywords

  • Compression test
  • Microstructure
  • Ti alloy
  • Transmission electron microscopy (TEM)
  • Yielding strength

ASJC Scopus subject areas

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

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