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  High-strain induced reverse martensitic transformation in an ultrafine-grained Ti–Nb–Ta–Zr alloy

Li, Z., Zheng, B., Kurmanaeva, L. R., Zhou, Y. Z., Valiev, R. Z., & Lavernia, E. J. (2016). High-strain induced reverse martensitic transformation in an ultrafine-grained Ti–Nb–Ta–Zr alloy. Philosophical Magazine Letters, 96(5), 189-195. doi:10.1080/09500839.2016.1189098.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-B979-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-B97A-6
Genre: Journal Article

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 Creators:
Li, Zhiming1, 2, Author              
Zheng, Baolong3, 4, Author              
Kurmanaeva, Lilia R.3, Author              
Zhou, Yizhang Z.3, 4, Author              
Valiev, Ruslan Z.5, 6, Author              
Lavernia, Enrique J.2, 4, Author              
Affiliations:
1Adaptive Structural Materials (Experiment), Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863382              
2Department of Chemical Engineering and Materials Science, University of California, Davis, Davis, CA, USA, ou_persistent22              
3Department of Chemical Engineering and Materials Science, University of California, Davis, CA, USA, persistent22              
4Department of Chemical Engineering and Materials Science, University of California, Irvine, CA, USA, persistent22              
5Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa, Russia, persistent22              
6Laboratory for Mechanics of Bulk Nanostructured Materials, Saint-Petersburg State University, Saint Petersburg, Russia, persistent22              

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Free keywords: Equal channel angular pressing; Grain refinement; Grain size and shape; Linear transformations; Martensite; Niobium; Pressing (forming); Strain; Tantalum; Titanium alloys, Body-centred cubic; Grain size; High strains; Low strains; Matrix phase; Ultrafine grained materials; Ultrafine-grained Ti; Zr alloys, Martensitic transformations
 Abstract: We report on a novel phenomenon, that is a high-strain-induced reverse martensitic transformation in an ultrafine-grained Ti–36Nb–2Ta–3Zr (wt.) alloy processed by equal channel angular pressing (ECAP) at room temperature. Our results show that a martensitic transformation from body-centred cubic β matrix to orthorhombic α″ martensite occurs under low-strain ECAP conditions and that a large portion (~34) of martensite transforms into a matrix phase (i.e. reverse martensitic transformation) with increasing ECAP strain to a high value of 4 (i.e. 6 passes) with a corresponding reduction in the α″-lath thickness and a refinement of grain size in the matrix phase. © 2016 Informa UK Limited.

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Language(s): eng - English
 Dates: 2016-05-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1080/09500839.2016.1189098
BibTex Citekey: Li2016189
 Degree: -

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Title: Philosophical Magazine Letters
  Abbreviation : Philos. Mag. Lett.
Source Genre: Journal
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Publ. Info: London : Taylor and Francis
Pages: - Volume / Issue: 96 (5) Sequence Number: - Start / End Page: 189 - 195 Identifier: ISSN: 0950-0839
CoNE: /journals/resource/954925271392