J Mater Sci Technol ›› 1995, Vol. 11 ›› Issue (1): 38-40.

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Realization of Superplastic State of Polycrystals under Grain-boundary Diffusion

Yu.R.Kolobov and I.V.Ratochka(Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences,634055, Tomsk, Russia)   

  • Received:1995-01-28 Revised:1995-01-28 Online:1995-01-28 Published:2009-10-10

Abstract: Creep behaviour of Mo and Fe polycrystals has been studied for a wide range of Strain rates in the presence of grain-boundary diffusion flux of Ni. The role of the impurity grain-boundary diffusion and grain-boundary migratin in the realization of the superplastic strain of metals under these conditions is examined