Grain boundary structures of ARB processed aluminum

Seiichiro Ii, Motoki Hishida, Naoki Takata, Ken Ichi Ikeda, Hideharu Nakashima, Nobuhiro Tsuji

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

3 Citations (Scopus)

Abstract

Grain boundary structures in the commercial purity aluminum (1100A1) highly deformed by the accumulative roll bonding (ARB) process was observed by using conventional transmission electron microscopy (CTEM) and high resolution transmission electron microscopy (HRTEM). In the low angle grain boundary with a tilt angle (2θ) of 2.1° consisted of the periodic dislocations array, the interval of those dislocations could be explained by the dislocation model for grain boundary. However, the dense dislocation region locally existed at the vicinity of the low angle boundary. On the other hand, we also observed the high angle grain boundary of which the common axis and 2θ was 〈110〉 and 125.9°, respectively. In this grain boundary, we could describe the boundary configuration in terms of the combination of the kite-shaped structure unit characterized by Σ11 coincidence boundary with the 2θ of 129.52° around 〈110〉 and the additional dislocations to compensate the difference of the actual and geometrically coincided one.

Original languageEnglish
Title of host publicationMaterials Science Forum - Nanomaterials by Severe Plastic Deformation 4 - 4th International Conference on Nanomaterials by Severe Plastic Deformation
PublisherTrans Tech Publications Ltd
Pages716-721
Number of pages6
ISBN (Electronic)978-0-87849-360-9
DOIs
Publication statusPublished - Jan 1 2008
Event4th International Conference on Nanomaterials by Severe Plastic Deformation - Goslar, Germany
Duration: Aug 18 2008Aug 22 2008

Publication series

NameMaterials Science Forum
Volume584-586 PART 2
ISSN (Print)0255-5476

Other

Other4th International Conference on Nanomaterials by Severe Plastic Deformation
CountryGermany
CityGoslar
Period8/18/088/22/08

All Science Journal Classification (ASJC) codes

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

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  • Cite this

    Ii, S., Hishida, M., Takata, N., Ikeda, K. I., Nakashima, H., & Tsuji, N. (2008). Grain boundary structures of ARB processed aluminum. In Materials Science Forum - Nanomaterials by Severe Plastic Deformation 4 - 4th International Conference on Nanomaterials by Severe Plastic Deformation (pp. 716-721). (Materials Science Forum; Vol. 584-586 PART 2). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/msf.584-586.716