Development of the continuous process method for ECAP using a tri-axis rotary die and microstructural evolution of semi-solid aluminium alloy

K. Natori*, F. Nomura, Y. Arao, T. Tanaka

*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

The continuous ECAP process which can provide three-dimensional strain was developed in this study. A die with tri-axis crossed channels having channel angle φ of 90° and curvature ψ of 0° was created. As a result, continuous ECAP process via route Bc for AC4CH aluminium semi-solid alloy could be performed at 573K at pressing speed of 0.5mm/sec using the developed die. The continuous method cut the processing time in half compared to the non-continuously conventional method. The grains became fine from 100μm to approximately 2μm. Workpiece processed 8 passes exhibited four times higher toughness than as-cast alloy.

Original languageEnglish
Title of host publicationHigh Performance Structures and Materials VI
Pages107-117
Number of pages11
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event6th International Conference on High Performance Structures and Materials, HPSM 2012 - New Forest, United Kingdom
Duration: 2012 Jun 192012 Jun 21

Publication series

NameWIT Transactions on the Built Environment
Volume124
ISSN (Print)1743-3509

Conference

Conference6th International Conference on High Performance Structures and Materials, HPSM 2012
Country/TerritoryUnited Kingdom
CityNew Forest
Period12/6/1912/6/21

Keywords

  • Al-Si-Mg alloy
  • Continuous process
  • Equal-channel angular pressing
  • Semi-solid cast
  • Severe plastic deformation
  • Tri-RD-ECAP
  • Ultrafine grained

ASJC Scopus subject areas

  • Architecture
  • Civil and Structural Engineering
  • Building and Construction
  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Arts and Humanities (miscellaneous)
  • Transportation
  • Safety Research
  • Computer Science Applications

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