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  Study of dislocation substructures in high-Mn steels by electron channeling contrast imaging

Gutiérrez-Urrutia, I., & Raabe, D. (2014). Study of dislocation substructures in high-Mn steels by electron channeling contrast imaging. Materials Science Forum, 783-786, 750-754.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-C27B-A Version Permalink: http://hdl.handle.net/21.11116/0000-0001-C27C-9
Genre: Conference Paper

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 Creators:
Gutiérrez-Urrutia, Ivan1, Author              
Raabe, Dierk1, Author              
Affiliations:
1Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863381              

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Free keywords: Diffraction; Electrons, Crystallographic orientations; Diffraction conditions; Dislocation patterning; Dislocation substructures; EBSD; Electron back scatter diffraction; Electron channeling contrasts; TWIP steel, Manganese
 Abstract: We have investigated the formation of dislocation substructures in high-Mn steels by electron channeling contrast imaging in the SEM. The coupling of electron channeling contrast imaging (ECCI) with electron backscatter diffraction (EBSD) provides an efficient and fast approach to characterize dislocation substructures under controlled diffraction conditions with enhanced contrast. The dislocation substructure of high-Mn steels at intermediate strain levels is characterized by cells and cell blocks with strong crystallographic orientation dependence. We observe a significant effect of strain path on dislocation patterning. Microband formation is enabled under shearing conditions. We explain this effect on terms of Schmid's law. © (2014) Trans Tech Publications, Switzerland.

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Language(s): eng - English
 Dates: 2014
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISBN: 9783038350736
BibTex Citekey: Gutierrez-Urrutia2014750
 Degree: -

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Title: 8th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2013
Place of Event: Las Vegas, NV, USA
Start-/End Date: 2013-12-02 - 2013-12-06

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Title: Materials Science Forum
  Abbreviation : Mater. Sci. Forum
Source Genre: Journal
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Publ. Info: Zürich, Switzerland : Trans Tech Publications
Pages: - Volume / Issue: 783-786 Sequence Number: - Start / End Page: 750 - 754 Identifier: ISSN: 0255-5476
CoNE: https://pure.mpg.de/cone/journals/resource/954928550320