This article is cited in 19 papers

Solids

Localization of plastic flow at dynamic channel angular pressing

I. N. Borodin^ab, A. E. Mayer<sup>b

a</sup> Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg
^b Chelyabinsk State University

Abstract: The effect of plastic flow localization, which is significant for obtaining ultra-fine-grain metals by intense high-rate plastic straining, is studied numerically. Large-scale localization of plastic flow, which is determined by the geometry of the problem, as well as microscopic localization appearing due to instability of plastic strain during the passage of a shock wave through the material, is detected. This effect is proposed for explaining the formation of nanocrystal-size grains obtained in experiments on dynamic channel-angular pressing.

Received: 13.11.2012

 English version: Technical Physics, 2013, 58:8, 1159–1163

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