Mössbauer Spectroscopy Studies of Grain Boundaries in Nanostructured Metals

Vladimir V. Popov

doi:10.4028/www.scientific.net/DDF.273-276.506

Paper Titles

Defect-Induced Photoluminescence of Powdered Silica Glass
p.479

Mass Transfer Kinetics in the Desulphurisation of Pig Iron with CaO and CaC₂
p.485

Kinetic Description of the Mass Transfer in Ladle Metallurgy Operations
p.491

Estimation of the Rate of Hydrogen Penetration in a Welded API 5L Steel Pipe
p.500

Mössbauer Spectroscopy Studies of Grain Boundaries in Nanostructured Metals
p.506

Effect of Doping, Composite Geometry and Diffusion Annealing Schedules on the Structure of Nb₃Sn Layers in Nb/Cu-Sn Wires
p.514

Kinetics Parameters of Atomic Migration and Diffuse Scattering of Radiations within the F.C.C.-Ni–Al Alloys
p.520

Atomic-Ordering Kinetics and Diffusivities in Ni–Fe Permalloy
p.525

Al-Li Surface Alloying in the Electrolytic Method
p.531

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Mössbauer Spectroscopy Studies of Grain Boundaries in Nanostructured Metals

Abstract:

The results of NGR studies of grain boundaries in nanocrystalline metals are briefly reviewed and analyzed together with the data of ordinary diffusion experiments. Grain boundaries in materials obtained both by powder technologies and severe plastic deformation (SPD) are considered. Possible factors causing accelerated mass transfer in every case are analyzed with the account taken of specific features of the structure of these materials.