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Submicro and Nanostructuring of Materials by Severe Plastic Deformation

  • Viktor P. AstakhovEmail author
Chapter
Part of the Materials Forming, Machining and Tribology book series (MFMT)

Abstract

This chapter discusses the development of the metallurgical structure of submicro and nanostructured metallic materials in Severe Plastic Deformation (SPD) . Particular attention is paid to Equal-Channel Angular Pressing (ECAP) as the most feasible way to achieve the major objectives of grain refinement , distinguished as strength enhancement, superplasticity, and improvement in creep resistance. The need and essence of the multi-pass process is explained in detail. Particular attention is paid to the deformation mode in SPD . It is shown that the discussed objectives can be achieved if this deformation mode is simple shear . The chapter also presents the development and modeling of large strain extrusion machining (LSEM) , comparing the results obtained in this process with those in ECAP.

Keywords

Shear Band Severe Plastic Deformation Simple Shear Deformation Zone Chip Thickness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.General Motors Business Unit of PSMiOkemosUSA

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