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Propagation of shear bands in Ti 66.1 Cu 8 Ni 4.8 Sn 7.2 Nb 13.9 nanostructure-dendrite composite during deformation

Kim, K. B. ; Das, J. ; Baier, F. ; Eckert, J.

Applied Physics Letters, 25 April 2005, Vol.86(17) [Periódico revisado por pares]

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  • Título:
    Propagation of shear bands in Ti 66.1 Cu 8 Ni 4.8 Sn 7.2 Nb 13.9 nanostructure-dendrite composite during deformation
  • Autor: Kim, K. B. ; Das, J. ; Baier, F. ; Eckert, J.
  • Assuntos: Structural, Mechanical, Thermodynamic, And Optical Properties Of Condensed Matter
  • É parte de: Applied Physics Letters, 25 April 2005, Vol.86(17)
  • Descrição: During deformation of Ti 66.1 Cu 8 Ni 4.8 Sn 7.2 Nb 13.9 nanostructure-dendrite composite, primary and secondary shear bands form under perpendicular orientation. Detailed investigation of the microstructure of deformed specimens reveals deformed body-centered-cubic (bcc) β -Ti dendrites forming a stepped morphology at the interfaces between the bcc β -Ti dendrites and the nanostructured matrix, consisting of hexagonal close packed (hcp) α -Ti and body-centered-tetragonal (bct) Ti 2 Cu phases. In the nanostructured matrix, the primary shear bands pass through coherent grain boundaries between the hcp α -Ti and the bct Ti 2 Cu phases. In contrast, the secondary shear bands in the nanostructured matrix are arrested by sandwiched nanoscale grains of the hcp α -Ti and bct Ti 2 Cu phases.
  • Idioma: Inglês

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