Effects of boron on microstructure in cast titanium alloys

M. J. Bermingham, S. D. McDonald, K. Nogita, D. H. St. John, M. S. Dargusch

Research output: Contribution to journalArticle

106 Citations (Scopus)

Abstract

Trace additions of boron to commercial purity titanium result in significant microstructural changes. Changes include the promotion of dendritic growth and refinement in both the prior-β and α-grain size. Boron partitions strongly on solidification and TiB intermetallics are observed throughout the microstructure, confined to interdendritic regions. This strong partitioning of solute causes prior-β grain refinement, and the presence of TiB intermetallics and/or the increased β-grain boundary surface area associated with the change in β-grain morphology assists nucleation of the α-phase.

Original languageEnglish
Pages (from-to)538-541
Number of pages4
JournalScripta Materialia
Volume59
Issue number5
DOIs
Publication statusPublished - Sep 1 2008

Fingerprint

Boron
cast alloys
titanium alloys
Titanium alloys
Intermetallics
intermetallics
boron
microstructure
Microstructure
Grain refinement
promotion
Titanium
solidification
Solidification
partitions
solutes
purity
Grain boundaries
Nucleation
grain boundaries

All Science Journal Classification (ASJC) codes

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

Cite this

Bermingham, M. J., McDonald, S. D., Nogita, K., St. John, D. H., & Dargusch, M. S. (2008). Effects of boron on microstructure in cast titanium alloys. Scripta Materialia, 59(5), 538-541. https://doi.org/10.1016/j.scriptamat.2008.05.002

Effects of boron on microstructure in cast titanium alloys. / Bermingham, M. J.; McDonald, S. D.; Nogita, K.; St. John, D. H.; Dargusch, M. S.

In: Scripta Materialia, Vol. 59, No. 5, 01.09.2008, p. 538-541.

Research output: Contribution to journalArticle

Bermingham, MJ, McDonald, SD, Nogita, K, St. John, DH & Dargusch, MS 2008, 'Effects of boron on microstructure in cast titanium alloys', Scripta Materialia, vol. 59, no. 5, pp. 538-541. https://doi.org/10.1016/j.scriptamat.2008.05.002
Bermingham MJ, McDonald SD, Nogita K, St. John DH, Dargusch MS. Effects of boron on microstructure in cast titanium alloys. Scripta Materialia. 2008 Sep 1;59(5):538-541. https://doi.org/10.1016/j.scriptamat.2008.05.002
Bermingham, M. J. ; McDonald, S. D. ; Nogita, K. ; St. John, D. H. ; Dargusch, M. S. / Effects of boron on microstructure in cast titanium alloys. In: Scripta Materialia. 2008 ; Vol. 59, No. 5. pp. 538-541.
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