No 1, Vol. 2, 2001 
 

DIFFUSION AND RELATED PHENOMENA IN BULK NANOSTRUCTURED MATERIALS

M. D. Baro ¹, Yu. R. Kolobov ², I. A. Ovid'ko ³, H.-E.Schaefer 4,
B.B. Straumal 5, R. Z. Valiev 6, I.V. Alexandrov 6, M. Ivanov ²,
K. Reimann 4, A. B. Reizis ³, S. Surinach¹, A.P. Zhilyaev 1,6

1 Universitat AutÚnoma de Barcelona, 08193 Bellaterra, SPAIN.
E-mail: Dolores.Baro@uab.es
2 Institute of strength physics and materials science, Tomsk, RUSSIA
E-mail: kolobovispms@mail.tomsknet.ru
3 Institute of problems of mechanical engineering, S.-Petersburgh, RUSSIA.
E-mail: ovidko@def.ipme.ru
4 Universitaet Stuttgart, Institut fuer theoretische und angewandte Physik 70550 Stuttgart, GERMANY.
E-mail: schaefer@itap.physik.uni-stuttgart.de
5 Institute of Solid State Physics, 142432 Chernogolovka, Moscow District, RUSSIA.
E-mail: straumal@issp.ac.ru
6 Institute for Physics of Advanced Materials, Ufa State Aviation Technical University, 450000 Ufa, RUSSIA.
E-mail: AlexZh@mail.rb.ru

Abstract

The paper reviews results of experimental and theoretical studies of diffusion and related phenomena (grain growth, creeps,superplasticity) in bulk nanostructured materials. The particular attention is paid to the recent development in fabrication of bulk nanostructured materials and their microstructural characterization, evolution of bulk nanostructured materials during heating. Experimental study and theoretical modeling of grain boundary diffusion in bulk nanostructured materials are described. Related phenomena (grain growth, creep, superplasticity) in such materials and also ordering-reordering kinetics are presented.

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