Structure and Properties of Grain Boundaries in Submicrocrystalline W Obtained by Severe Plastic Deformation

Vladimir V. Popov; Ruslan Valiev; E.N. Popova; A.V. Sergeev; A.V. Stolbovsky; V.U. Kazihanov

doi:10.4028/www.scientific.net/DDF.283-286.629

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Structure and Properties of Grain Boundaries in Submicrocrystalline W Obtained by Severe Plastic Deformation
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Ti Redistribution in Multifilamentary Nb/Cu-Sn Composites
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Structure and Properties of Grain Boundaries in Submicrocrystalline W Obtained by Severe Plastic Deformation

Abstract:

Submicrocrystalline structure of W obtained by severe plastic deformation (SPD) by high pressure torsion (5 revolutions of anvils at 4000C) and its thermal stability have been examined by TEM. Grain boundaries of submicrocrystalline W have been studied by the method of the emission Mössbauer spectroscopy in the initial state and after annealing at 400-6000С.