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  Gamma-channel stabilization mechanism in Ni-base superalloys

Goerler, J. V., Brinckmann, S., Shchyglo, O., & Steinbach, I. (2015). Gamma-channel stabilization mechanism in Ni-base superalloys. Philosophical Magazine Letters, 95(11), 519-525. doi:10.1080/09500839.2015.1109716.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-5C8B-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-5C8C-D
Genre: Journal Article

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 Creators:
Goerler, Johannes V.1, Author              
Brinckmann, Steffen2, 3, Author              
Shchyglo, Oleg4, Author              
Steinbach, Ingo5, Author              
Affiliations:
1Interdisciplinary Centre for Advanced Materials Simulation (ICAMS), Ruhr-Universität Bochum, Universitätsstr. 150, Bochum, Germany, ou_persistent22              
2Interdisciplinary Center for Advanced Materials Simulation (ICAMS), Ruhr University Bochum, Universitätsstrasse 150, 44780 Bochum, Germany , ou_persistent22              
3Nanotribology, Structure and Nano-/ Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863402              
4Interdisciplinary Centre for Advanced Materials Simulation, Ruhr-Universität Bochum, 44780 Bochum, Germany, ou_persistent22              
5Interdisciplinary Centre for Advanced Materials Simulation (ICAMS), Ruhr-Universität Bochum, 44780 Bochum, Germany, ou_persistent22              

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Free keywords: misfit dislocations; Ni-Al; superalloys
 Abstract: A mechanism is presented which opposes coalescence of gamma'-precipitates in Ni-base superalloys. The mechanism is based on the non-linear behaviour of the elastic energy in gamma-channels, caused by the misfit strain between matrix and precipitate, as a function of the channel width. Variation of the channel width causes a disjoining pressure dependent on the density of misfit dislocations.

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Language(s): eng - English
 Dates: 2015-11-02
 Publication Status: Published in print
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Degree: -

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Title: Philosophical Magazine Letters
  Abbreviation : Philos. Mag. Lett.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Taylor and Francis
Pages: - Volume / Issue: 95 (11) Sequence Number: - Start / End Page: 519 - 525 Identifier: ISSN: 0950-0839
CoNE: https://pure.mpg.de/cone/journals/resource/954925271392