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  Understanding hot vs. Cold rolled medium manganese steel deformation behavior using in situ microscopic digital image correlation

Dutta, A., Ponge, D., Sandlöbes, S., & Raabe, D. (2018). Understanding hot vs. Cold rolled medium manganese steel deformation behavior using in situ microscopic digital image correlation. Materials Science Forum, 941, 198-205. doi:10.4028/www.scientific.net/MSF.941.198.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-A293-F Version Permalink: http://hdl.handle.net/21.11116/0000-0003-A294-E
Genre: Journal Article

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 Creators:
Dutta, Aniruddha1, Author              
Ponge, Dirk1, Author              
Sandlöbes, Stefanie2, Author              
Raabe, Dierk3, Author              
Affiliations:
1Mechanism-based Alloy Design, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863383              
2Institute of Physical Metallurgy and Metal Physics, RWTH Aachen University, 52056 Aachen, Germany, ou_persistent22              
3Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863381              

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Free keywords: Austenite; Cold rolled steel; Cold rolling; Deformation; Image analysis; Manganese steel; Martensite; Martensitic transformations; Metal cladding; Steel metallurgy; Steel sheet; Strain; Strain measurement; Hot rolling; Microalloyed steel, Crystallographic orientations; EBSD; Martensitic phase transformations; Microscopic Digital Images; Reverted austenite; Strain localizations; Strain partitioning; Tempered martensite, Hot rolled steel
 Abstract: We address the differences in yield stresses between hot and cold rolled medium manganese steel showing continuous yielding. Continuous yielding in both, the hot and cold rolled samples were resulting from reverted austenite islands plastically deforming first and less strain in the tempered martensite matrix. At higher global strains, strain was taken up not only by the reverted austenite, but also by tempered martensite and fresh martensite formed from the austenite through martensitic phase transformation during deformation. Strain localization was also observed in the hot rolled samples. This localization is caused by cumulative deformation of colonies of lamellar reverted austenite islands. It is interpreted in terms of the spatial alignment of austenite colonies to the loading direction in addition to the crystallographic orientation. © 2018 Trans Tech Publications, Switzerland.

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Language(s): eng - English
 Dates: 2018-12-262018
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.4028/www.scientific.net/MSF.941.198
BibTex Citekey: Dutta2018198
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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: 941 Sequence Number: - Start / End Page: 198 - 205 Identifier: ISSN: 0255-5476
CoNE: https://pure.mpg.de/cone/journals/resource/954928550320