The microstructure and creep behavior of a boron-modified Ti-15Al-33Nb (at%) alloy

C. J. Cowen, C. J. Boehlert

Research output: Contribution to journalArticle

  • 3 Citations

Abstract

The affect of boron (B) on the microstructure and creep behavior of a Ti-15Al-33Nb (at%) alloy was investigated. In addition to the normal constituent phases present in the monolithic alloy, the B-modified alloy contained borides enriched in titanium and niobium. These borides were present in the form of needles/laths up to 50 μm long and 10 μm wide which took up 5-9% of the volume. Constant load, tensile-creep experiments were performed in the stress range of 150-340 MPa and the temperature range of 650-710°C, in both air and vacuum environments. An addition of 0.5 at% B did not improve the creep resistance of the monolithic alloy, while the addition of 5 at% B significantly improved the creep resistance.

LanguageEnglish (US)
Pages976-981
Number of pages6
JournalAdvanced Materials Research
Volume15-17
StatePublished - 2007

Profile

Boron
Creep
Microstructure
Creep resistance
Borides
Niobium
Needles
Loads (forces)
Titanium
Vacuum
Air
Experiments
Temperature

Keywords

  • Boron
  • Creep
  • Microstructure
  • Titanium alloy

ASJC Scopus subject areas

  • Engineering(all)

Cite this

The microstructure and creep behavior of a boron-modified Ti-15Al-33Nb (at%) alloy. / Cowen, C. J.; Boehlert, C. J.

In: Advanced Materials Research, Vol. 15-17, 2007, p. 976-981.

Research output: Contribution to journalArticle

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