Deriving the Grain Boundary Character Distribution and relative Energies from Three Dimensional EBSD Data (PREPRINT)

Abstract

Three-dimensional electron backscattered diffraction data from a nickel-base super alloy has been analyzed to measure the geometric arrangement of grain boundary planes at triple junctions. This information has been used to calculate the grain boundary character distribution (GBCD) and the grain boundary energy distribution (GBED). The twin content from the three-dimensional GBCD calculation compares favorably with the twin content estimated by stereology. Important factors in the analysis are the alignment of the parallel layers, the ratio of the vertical to horizontal spacing, and the discretization of the domain of grain boundary types. The results show that the GBCD and GBED are inversely correlated.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2010
Accession Number
ADA522180

Entities

People

  • Anthony D Rollett
  • Gregory S Rohrer
  • Jia Li
  • Michael D. Uchic
  • Michael Groeber
  • Sukbin Lee

Organizations

  • Air Force Research Laboratory

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  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Boundaries
  • Department Of Defense
  • Grain Boundaries
  • Information Operations
  • Materials
  • Materials Science
  • Metals
  • Military Research
  • Personality
  • Three Dimensional
  • United States

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  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
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