Effect of boron concentration on phase transformation texture in as-solidified Ti44Al8NbxB

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • ROLLS ROYCE

Abstract

The textured microstructures in as-solidified grain refined Ti44Al8NbxB (x = 0.1–1) were formed by β phase transforming into Burgers α during solid-phase transformation. The Burgers α volume fraction was determined using electron backscattering diffraction texture analysis. It is related to the boron concentration in the alloys and decreases with increasing boron concentration. This trend can be associated with the formation of more boride precipitates from the liquid in alloys with a high boron concentration.

Details

Original languageEnglish
Pages (from-to)85
Number of pages4
JournalScripta Materialia
Volume67
Issue number1
Early online date28 Mar 2012
Publication statusPublished - Jul 2012

Keywords

  • Titanium aluminides, Solidification microstructure, Texture, Electron backscattering diffraction (EBSD), Grain refining