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  A multiscale perspective on the kinetics of solid state transformations with application to bainite formation

Hüter, C., Lin, M., Said Schicchi, D., Hunkel, M., Prahl, U., & Spatschek, R. P. (2015). A multiscale perspective on the kinetics of solid state transformations with application to bainite formation. AIMS Materials Science, 2(4), 319-345. doi:10.3934/matersci.2015.4.319.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-BD7F-D Version Permalink: http://hdl.handle.net/21.11116/0000-0001-BD80-9
Genre: Journal Article

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 Creators:
Hüter, Claas1, Author              
Lin, Mingxuan2, Author              
Said Schicchi, Diego3, Author              
Hunkel, Martin3, Author              
Prahl, Ulrich4, Author              
Spatschek, Robert Philipp1, 5, Author              
Affiliations:
1Mescoscale Simulations, Computational Materials Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863343              
2RWTH Aachen University, Department of Ferrous Metallurgy, Aachen, Germany, persistent22              
3IWT Stiftung Institut für Werkstofftechnik, Bremen, Germany, persistent22              
4Department of Ferrous Metallurgy, RWTH Aachen University, Aachen, Germany, ou_persistent22              
5Institute for Energy and Climate Research, Forschungszentrum Jülich GmbH, Jülich, Germany, ou_persistent22              

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 Abstract: We give an excerpt of recent developments in the experimentally benchmarked modeling of bainite formation in the press hardening process. As the press hardening process poses a heavily multi-parameter dependent modeling challenge, we focus on three main branches which complement each other. We emphasise the combination of basic sharp interface and phase field models with pragmatically adapted multi phase field models and experimentally parametrized implementations of the Johnson-Mehl-Avrami model. In the basic thermodynamic modeling part, we review fundamental aspects of displacive and diffusional-displacive transformations to predict dominant transformation morphologies. These results provide a link to multi-phase-field implementations which allow to simulate isothermal bainitic transformations, supported by available material data from thermodynamic databases. Excellent agreement with experiments, e.g. scanning electron microscopy for the transformed bainite in the high-carbon steel 100Cr6 shows the value of these model implementations. The further connection to Johnson-Mehl-Avrami models offers to extend the understanding to transformation plasticity for the press hardening steel 22MnB5. © 2015, Robert Spatschek, et al.

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Language(s): eng - English
 Dates: 2015
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.3934/matersci.2015.4.319
BibTex Citekey: Hüter2015319
 Degree: -

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Title: AIMS Materials Science
Source Genre: Journal
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Publ. Info: Springfield, MO : AIMS Press
Pages: - Volume / Issue: 2 (4) Sequence Number: - Start / End Page: 319 - 345 Identifier: ISSN: 2372-0468
CoNE: /journals/resource/2372-0468