Growth of semicoherent TiFe nanoparticles in β-Ti matrix

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)Not applicablepeer-review

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Author(s)

Detail(s)

Original languageEnglish
Title of host publicationSynthesis and Properties of Mechanically Alloyed and Nanocrystalline Materials
EditorsDino Fiorani, Mauro Magini
PublisherTrans Tech Publications
Pages457-462
ISBN (Electronic)9783035705157
ISBN (Print)9780878497508
Publication statusPublished - 1997
Externally publishedYes

Publication series

NameMaterials Science Forum
Volume235-238
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

TitleInternational Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-96)
Location
PlaceItaly
CityRome
Period20 - 24 May 1996

Abstract

Thin Ti73Fe27 ribbons were prepared by rapid quenching from the melt. The as-quenched ribbons were in metastable condition with a small amount of nanoparticles of TiFe embedded in the β -Ti matrix. The β-Ti phase was oversaturated with Fe, and the amount of this phase was higher than the equilibrium value. High resolution imaging of the interface between TiFe and β-Ti showed that a periodic array of dislocations were present in the boundary to accommodate the lattice mismatch. The spacing between the dislocations in as-quenched specimen was 4.8 nm. When the ribbon was heated to 700°C, growth of the TiFe nanoparticles in 13-Ti matrix took place. The amount of β-Ti was reduced, as well as the Fe content in β-Ti. The interface between TiFe and β-Ti remained semicoherent, except that the spacing between the edge dislocations was reduced to 3.4 nm. The persistence of the semicoherent interface was ascribed to the same crystal structure and close lattice parameters of TiFe and β-Ti. Prolonged heating of the ribbon below the eutectoid temperature led to transformation of β-Ti to α-Ti.

Research Area(s)

  • β-Ti, Amorphous, Nanoparticles, Semicoherent interface, TiFe

Citation Format(s)

Growth of semicoherent TiFe nanoparticles in β-Ti matrix. / Lee, C. L.; Radojevic, B.; Chen, F.-R.; Perng, T.-P.

Synthesis and Properties of Mechanically Alloyed and Nanocrystalline Materials. ed. / Dino Fiorani; Mauro Magini. Trans Tech Publications, 1997. p. 457-462 (Materials Science Forum; Vol. 235-238).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)Not applicablepeer-review