The phase evolution, mechanical behavior, and microstructural instability of a fully-lamellar Ti-46Al(at.%) alloy

C. J. Boehlert, D. M. Dimiduk, K. J. Hemker

Research output: Contribution to journalArticle

  • 13 Citations

Abstract

A Ti-46Al(at.%) polysynthetically twinned alloy, which contained a characteristic lamellar spacing of λ=1.3 μm, was converted to a polycrystalline fully-lamellar microstructure with λ=19.9 nm using an α-phase solution treatment followed by α2 + γ aging. Tensile experiments, performed on microsamples extracted from within single grains of the polycrystalline material, illustrated that ultrafine lamellae led to exceptional tensile strength. However, the ultrafine lamellae were not stable at elevated temperatures and the ultrafine material was found to have relatively poor creep resistance.

Original languageEnglish (US)
Pages (from-to)259-267
Number of pages9
JournalScripta Materialia
Volume46
Issue number4
DOIs
StatePublished - Feb 2002
Externally publishedYes

Profile

lamella
creep strength
tensile strength
spacing
microstructure
temperature
Polycrystalline materials
Creep resistance
Tensile strength
Microstructure
Experiments
Temperature
Common Bile Duct Diseases
Acetanilides
Bibliography of Medicine
Helsinki Declaration
Perineum
Temporal Lobe Epilepsy
Traffic Accidents
Oxidoreductases Acting on CH-NH Group Donors

Keywords

  • Creep
  • Microsample testing
  • Microstructure
  • Phase transformations
  • Titanium

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Metals and Alloys

Cite this

The phase evolution, mechanical behavior, and microstructural instability of a fully-lamellar Ti-46Al(at.%) alloy. / Boehlert, C. J.; Dimiduk, D. M.; Hemker, K. J.

In: Scripta Materialia, Vol. 46, No. 4, 02.2002, p. 259-267.

Research output: Contribution to journalArticle

Boehlert, C. J.; Dimiduk, D. M.; Hemker, K. J. / The phase evolution, mechanical behavior, and microstructural instability of a fully-lamellar Ti-46Al(at.%) alloy.

In: Scripta Materialia, Vol. 46, No. 4, 02.2002, p. 259-267.

Research output: Contribution to journalArticle

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