Influence of Trace Boron Addition on the Directional Solidification Characteristics of Ti–6Al–4V

Raghavan Srinivasan, Sesh Tamirisakandala

Research output: Contribution to journalArticlepeer-review

Abstract

Trace boron addition to several titanium alloys results in a reduction in the as-cast grain size by an order of magnitude. TiB needles are observed along the prior beta grain boundaries and not the grain interior in these alloys, indicating that TiB needles are not sites for the heterogeneous nucleation of beta grains. This study seeks to understand the influence of the growth rate R on microstructure evolution and grain refinement in Ti–6Al–4V–0.1B alloy using directional solidification experiments and microstructural characterization.

Original languageAmerican English
Pages (from-to)1244-1247
Number of pages4
JournalScripta Materialia
Volume63
Issue number12
DOIs
StatePublished - Dec 2010

ASJC Scopus Subject Areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

Keywords

  • Titanium alloys
  • Directional solidification
  • Solidification microstructure
  • Grain refining

Disciplines

  • Materials Science and Engineering
  • Mechanical Engineering

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