Realization of Superplastic State of Polycrystals under Grain-boundary Diffusion

材料科学技术（英）, 1995, 11(1): 38-40.

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)

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

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Realization of Superplastic State of Polycrystals under Grain-boundary Diffusion

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