Severe plastic deformation (SPD) processes for metals

A. Azushima, R. Kopp, A. Korhonen, D.Y. Yang, F. Micari, G.D. Lahoti, P. Groche, J. Yanagimoto, N. Tsuji, A. Rosochowski, A. Yanagida

Research output: Contribution to journalArticle

677 Citations (Scopus)

Abstract

Processes of severe plastic deformation (SPD) are defined as metal forming processes in which a very large plastic strain is imposed on a bulk process in order to make an ultra-fine grained metal. The objective of the SPD processes for creating ultra-fine grained metal is to produce lightweight parts by using high strength metal for the safety and reliability of micro-parts and for environmental harmony. In this keynote paper, the fabrication process of equal channel angular pressing (ECAP), accumulative rollbonding (ARB), high pressure torsion (HPT), and others are introduced, and the properties of metals processed by the SPD processes are shown. Moreover, the combined processes developed recently are also explained. Finally, the applications of the ultra-fine grained (UFG) metals are discussed.
Original languageEnglish
Pages (from-to)716-735
Number of pages20
JournalCIRP Annals - Manufacturing Technology
Volume57
Issue number2
DOIs
Publication statusPublished - 2008

Keywords

  • plastics
  • deformation
  • metals
  • spd
  • strain

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