Origin of plasticity in ultrafine lamellar Ti-Fe-(Sn) composites | Zendy

T. Maity | Zendy; J. Das | Zendy

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Origin of plasticity in ultrafine lamellar Ti-Fe-(Sn) composites

Author(s) -

T. Maity,

J. Das

Publication year - 2012

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4754851

Subject(s) - materials science , lamellar structure , feti , eutectic system , slip (aerodynamics) , composite material , plasticity , transmission electron microscopy , alloy , dislocation , cleavage (geology) , nanotechnology , structural engineering , physics , domain decomposition methods , finite element method , fracture (geology) , engineering , thermodynamics

Transmission electron microscopic studies of eutectic Ti68.38Fe28.61Sn3 upon 5% and 10% plastic deformation reveal slip transfer across the β-Ti/FeTi lamellae interface. Stroh's analysis suggests that addition of Sn to Ti70.5Fe29.5 increases the cleavage stress and reduces the slip stress around a dislocation pile-up at β-Ti/FeTi interface. The presence of ultrafine lamellar FeTi contributes strengthening whereas, dislocation slip is the origin of plasticity in high strength Ti-Fe-(Sn) composites

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