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research article

Quantification of multiple twinning in face centred cubic materials

Cayron, C.  
2011
Acta Materialia

Grain boundary engineering (GBE) aims at optimizing the properties of face centred cubic materials with low stacking fault energy by creating a high content of special twin boundaries. Quantifying twinning and its parameters, such as the twin related domains (TRDs) and the related ∑3n special grain boundaries, is thus of prime importance for GBE. A method is presented in detail to treat the electron backscatter diffraction (EBSD) maps. The TRDs are automatically reconstructed, the twinning chain trees of the TRDs are determined and represented with fractal graphs, and the ∑3n grain boundaries are identified up to order n = 12. New parameters, such as the numbers of grains (Ng), the lengths of the longest chain (LLC), the twinning polysynthesism (p) and twinning anisotropy (a) factors, are also calculated. Examples have been given for two nickel superalloys, a silicon ingot, a cadmium telluride film, and a copper thin film. © 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

  • Details
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Type
research article
DOI
10.1016/j.actamat.2010.09.029
Author(s)
Cayron, C.  
Date Issued

2011

Published in
Acta Materialia
Volume

59

Start page

252

End page

262

Subjects

Backscattering

•

Cadmium

•

Cadmium compounds

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Cadmium telluride

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Copper thin film

•

Electron back scatter diffraction

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Electron backscatter diffraction (EBSD)

•

electron diffraction

•

Face-centred cubic

•

Grain boundaries

•

Grain boundary engineering

•

Grain boundary engineering (GBE)

•

Grain size and shape

•

High-content

•

Low stacking fault energies

•

New parameters

•

Nickel superalloy

•

Recrystallization

•

Recrystallization (metallurgy)

•

Recrystallizations

•

Silicon ingot

•

Single crystals

•

Trees (mathematics)

•

Twin boundaries

•

Twinning

•

Twin related domain

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LMTM  
Available on Infoscience
November 14, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/108849
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