THE PRINCIPLES OF PRODUCING AN ULTRAFINE-GRAINED STRUCTURE IN LARGE-SECTION BILLETS

R.M. Imayev, A.A. Nazarov, R.R. Mulyukov, G.F. Khasanova show affiliations and emails
Received  12 January 2015; Accepted  21 January 2015
Citation: R.M. Imayev, A.A. Nazarov, R.R. Mulyukov, G.F. Khasanova. THE PRINCIPLES OF PRODUCING AN ULTRAFINE-GRAINED STRUCTURE IN LARGE-SECTION BILLETS. Lett. Mater., 2014, 4(4) 295-301
BibTex   https://doi.org/10.22226/2410-3535-2014-4-295-301

Abstract

Summarizing the results of the investigations performed at IMSP RAS, the principles of producing a uniform ultrafine-grained structure in large-section billets, based on the technique of multiple isothermal forging, have been formulated. These principles imply a uniform introduction of plastic strain energy into large-section billets, minimization of contact friction between the die-set and the billets, and deformation processing in the temperature and strain-rate conditions that are most favourable for development of dynamic recrystallization.

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