Development of diffraction-amalgamated grain-boundary tracking technique and its application to polycrystalline metals

Hiroyuki Toda, Darren Leclere, Takanobu Kamiko, Yoshio Suzuki, Akihisa Takeuchi, Kentaro Uesugi, Masakazu Kobayashi

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

1 Citation (Scopus)

Abstract

By amalgamating a transmission X-Ray diffraction (XRD) experiment with grain boundary tracking (GBT) that has been developed by the present authors by combining the X-ray micro-tomography (CT) and the gallium-enhanced grain boundary visualization techniques, a novel method which provides accurate crystallographic information of individual grains during deformation has been created. The developed technique, which is called diffraction-amalgamated grain boundary tracking (DAGT) technique, is non-destructive for in-situ characterizing of bulk materials, which allows for close to deformation and fracture analysis of metals. Employing near field XRD analysis with a thin collimated X-ray beam, the algorithms developed for DAGT identifies which diffraction spots are related to which grain; consequently, providing a description of the misorientation between grains. DAGT also realizes micron-level analysis of grain morphologies and local stain distribution in 3-dimensions (3D) on the basis of CT observation, enabling the crystallographic interpretation of localized deformation without being affected by blurring of diffraction spots caused by deformation. An Al-3mass%Cu alloy was used for demonstration purpose.

Original languageEnglish
Title of host publicationDevelopments in X-Ray Tomography VIII
DOIs
Publication statusPublished - Dec 1 2012
Externally publishedYes
EventDevelopments in X-Ray Tomography VIII - San Diego, CA, United States
Duration: Aug 13 2012Aug 15 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8506
ISSN (Print)0277-786X

Other

OtherDevelopments in X-Ray Tomography VIII
CountryUnited States
CitySan Diego, CA
Period8/13/128/15/12

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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