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SPD Processing and Superplasticity in Ultrafine-Grained Alloys

Published online by Cambridge University Press:  10 February 2011

R.Z. Valiev and
R.K. Islamgaliev
R.Z. Valiev
Affiliation:
Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12, K. Marks st., Ufa, 450000, Russia, RZValiev@mail.rb.ru
R.K. Islamgaliev
Affiliation:
Institute of Mechanics, Russian Academy of Science, 12, K. Marks st., Ufa, 450000, Russia, ris@mail.rb.ru
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Abstract

Severe plastic deformation (SPD), for example by intense plastic straining under high pressure, is an innovative technique for producing ultrafine-grained (UFG) metals and alloys. The SPD fabricated UFG structures can lead to enhanced superplasticity, which, however, depends strongly on processing parameters. The present paper focuses on examples of attaining enhanced superplasticity in several alloys, subjected to SPD and considers the relationship between processing – UFG structures – superplastic properties in SPD produced materials.

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