Favorable microstructural modulation and enhancement of mechanical properties of Ti-Fe-Nb ultrafine composites

J. M. Park, J. H. Han, K. B. Kim, N. Mattern, J. Eckert, Do Hyang Kim

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Microstructure evolution and its influence on the mechanical properties of (Ti65.5Fe34.5)100-xNbx (x = 0, 3, 5 and 7) ultrafine composites has been investigated. The Nb-containing alloys exhibit simultaneously improved compressive mechanical properties, i.e. high yield (1.9-2.2 GPa) and fracture (2.2-2.6 GPa) strength together with large plasticity (6-13%), due to a favorable modulation of their ultrafine eutectic microstructure. The enhanced mechanical properties are strongly related to the length-scale, volume fraction and distribution of proeutectic phase as well as to the refinement and interphase coherency of the alternating ultrafine eutectic layers.

Original languageEnglish
Pages (from-to)623-632
Number of pages10
JournalPhilosophical Magazine Letters
Volume89
Issue number10
DOIs
Publication statusPublished - 2009 Oct 1

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mechanical properties
modulation
eutectics
composite materials
augmentation
microstructure
plastic properties

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Park, J. M. ; Han, J. H. ; Kim, K. B. ; Mattern, N. ; Eckert, J. ; Kim, Do Hyang. / Favorable microstructural modulation and enhancement of mechanical properties of Ti-Fe-Nb ultrafine composites. In: Philosophical Magazine Letters. 2009 ; Vol. 89, No. 10. pp. 623-632.
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Favorable microstructural modulation and enhancement of mechanical properties of Ti-Fe-Nb ultrafine composites. / Park, J. M.; Han, J. H.; Kim, K. B.; Mattern, N.; Eckert, J.; Kim, Do Hyang.

In: Philosophical Magazine Letters, Vol. 89, No. 10, 01.10.2009, p. 623-632.

Research output: Contribution to journalArticle

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AB - Microstructure evolution and its influence on the mechanical properties of (Ti65.5Fe34.5)100-xNbx (x = 0, 3, 5 and 7) ultrafine composites has been investigated. The Nb-containing alloys exhibit simultaneously improved compressive mechanical properties, i.e. high yield (1.9-2.2 GPa) and fracture (2.2-2.6 GPa) strength together with large plasticity (6-13%), due to a favorable modulation of their ultrafine eutectic microstructure. The enhanced mechanical properties are strongly related to the length-scale, volume fraction and distribution of proeutectic phase as well as to the refinement and interphase coherency of the alternating ultrafine eutectic layers.

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