Severe plastic deformation under high pressure for production of superplastic materials

Zenji Horita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Grain refinement is an important prerequisite for advent of superplasticity. In particular, as the grain size is smaller, the superplasticity appears at higher strain rates and lower temperatures. Severe plastic deformation (SPD) is a useful process for achieving significant grain refinement. This presentation shows that applicability of the SPD process is enhanced when it is operated under high pressure through high-pressure torsion (HPT) and high-pressure sliding (HPS). It is demonstrated that commercially available conventional alloys but less ductile alloys such as Mg alloys, age-hardenable high-strength Al alloys (A2024, A7075) and Ti alloys become superplastic after processing by HPT or HPS.

Original languageEnglish
Title of host publicationSuperplasticity in Advanced Materials, ICSAM 2015
EditorsEiichi Sato, Goroh Itoh, Junya Kobayashi, Yoshimasa Takayama, Koichi Kitazono, Koji Morita, Takaomi Itoi
PublisherTrans Tech Publications Ltd
Pages287-293
Number of pages7
ISBN (Print)9783038356721
DOIs
Publication statusPublished - Jan 1 2016
Event12th International Conference on Superplasticity in Advanced Materials, ICSAM 2015 - Tokyo, Japan
Duration: Sep 7 2015Sep 11 2015

Publication series

NameMaterials Science Forum
Volume838-839
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other12th International Conference on Superplasticity in Advanced Materials, ICSAM 2015
CountryJapan
CityTokyo
Period9/7/159/11/15

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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