Features of Equal Channel Angular Pressing of Hard-to-Deform Materials

  1. Prof. Dr. Michael Zehetbauer2 and
  2. Prof. Ruslan Z. Valiev3
  1. G.I. Raab and
  2. E.P. Soshnikova

Published Online: 28 JAN 2005

DOI: 10.1002/3527602461.ch8f

Nanomaterials by Severe Plastic Deformation

Nanomaterials by Severe Plastic Deformation

How to Cite

Raab, G.I. and Soshnikova, E.P. (2004) Features of Equal Channel Angular Pressing of Hard-to-Deform Materials, in Nanomaterials by Severe Plastic Deformation (eds M. Zehetbauer and R. Z. Valiev), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527602461.ch8f

Editor Information

  1. 2

    Institut für Materialphysik, Universität Wien, Boltzmanngasse 5, 1090 Wien, Austria

  2. 3

    Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12 K. Marks Str., Ufa, 450 000, Russia

Author Information

  1. Ufa State Aviation Technical University, Ufa, Russia

Publication History

  1. Published Online: 28 JAN 2005
  2. Published Print: 25 FEB 2004

ISBN Information

Print ISBN: 9783527306596

Online ISBN: 9783527602469

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Keywords:

  • equal channel angular pressing (ECAP);
  • hard-to-deform materials;
  • ultra fine-grained materials;
  • UFG;
  • severe plastic deformation (SPD);
  • workability of UFG

Summary

Ultra fine-grained (UFG) materials possess unique physical and mechanical properties and can be successfully used in industry [1,2]. Traditional methods of hot plastic working (extrusion, rolling) are not efficient enough for fine-grain processing of bulk hard-to-deform materials. At present, for achievement of UFG structure in such materials a special method of severe plastic deformation (SPD) is used. In particular, a multi-pass procedure of equal channel angular pressing (ECAP) is an efficient method for processing bulk UFG materials [1,2,3]. However, application of ECAP for processing such hard-to-deform materials as steels, titanium alloys, high-melting point materials reveals some difficulties due to the materials low workability [4,5]. Evidently, both the properties of the material and the parameters of ECAP influence the workability.

The goal of the present work was to investigate the influence of ECAP regimes and routes on workability of UFG i during multi-pass pressing.