Deformation Induced Hierarchical Twinning Coupled with Omega Transformation in a Metastable β-Ti Alloy

Hierarchical twinning, at multiple length scales, was noted in a metastable body-centered cubic (bcc) β-titanium alloy on tensile deformation. Site-specific characterization within the deformation bands, carried out using EBSD and TEM, revealed {332} <113> type primary bcc twins, containing di...

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Autores principales: Mantri, S. A., Sun, F., Choudhuri, D., Alam, T., Gwalani, B., Prima, F., Banerjee, R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6362253/
https://www.ncbi.nlm.nih.gov/pubmed/30718639
http://dx.doi.org/10.1038/s41598-018-37865-0
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author Mantri, S. A.
Sun, F.
Choudhuri, D.
Alam, T.
Gwalani, B.
Prima, F.
Banerjee, R.
author_facet Mantri, S. A.
Sun, F.
Choudhuri, D.
Alam, T.
Gwalani, B.
Prima, F.
Banerjee, R.
author_sort Mantri, S. A.
collection PubMed
description Hierarchical twinning, at multiple length scales, was noted in a metastable body-centered cubic (bcc) β-titanium alloy on tensile deformation. Site-specific characterization within the deformation bands, carried out using EBSD and TEM, revealed {332} <113> type primary bcc twins, containing different variants of secondary and tertiary twins, as well as the formation of stress-induced martensite (α”). Within the primary {332} <113> type twin, “destruction” of the prior quenched-in athermal ω phase was observed, while a stress-induced ω phase reforms within the tertiary twins, revealing the intricate nature of coupling between deformation twinning and displacive ω transformation.
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spelling pubmed-63622532019-02-06 Deformation Induced Hierarchical Twinning Coupled with Omega Transformation in a Metastable β-Ti Alloy Mantri, S. A. Sun, F. Choudhuri, D. Alam, T. Gwalani, B. Prima, F. Banerjee, R. Sci Rep Article Hierarchical twinning, at multiple length scales, was noted in a metastable body-centered cubic (bcc) β-titanium alloy on tensile deformation. Site-specific characterization within the deformation bands, carried out using EBSD and TEM, revealed {332} <113> type primary bcc twins, containing different variants of secondary and tertiary twins, as well as the formation of stress-induced martensite (α”). Within the primary {332} <113> type twin, “destruction” of the prior quenched-in athermal ω phase was observed, while a stress-induced ω phase reforms within the tertiary twins, revealing the intricate nature of coupling between deformation twinning and displacive ω transformation. Nature Publishing Group UK 2019-02-04 /pmc/articles/PMC6362253/ /pubmed/30718639 http://dx.doi.org/10.1038/s41598-018-37865-0 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Mantri, S. A.
Sun, F.
Choudhuri, D.
Alam, T.
Gwalani, B.
Prima, F.
Banerjee, R.
Deformation Induced Hierarchical Twinning Coupled with Omega Transformation in a Metastable β-Ti Alloy
title Deformation Induced Hierarchical Twinning Coupled with Omega Transformation in a Metastable β-Ti Alloy
title_full Deformation Induced Hierarchical Twinning Coupled with Omega Transformation in a Metastable β-Ti Alloy
title_fullStr Deformation Induced Hierarchical Twinning Coupled with Omega Transformation in a Metastable β-Ti Alloy
title_full_unstemmed Deformation Induced Hierarchical Twinning Coupled with Omega Transformation in a Metastable β-Ti Alloy
title_short Deformation Induced Hierarchical Twinning Coupled with Omega Transformation in a Metastable β-Ti Alloy
title_sort deformation induced hierarchical twinning coupled with omega transformation in a metastable β-ti alloy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6362253/
https://www.ncbi.nlm.nih.gov/pubmed/30718639
http://dx.doi.org/10.1038/s41598-018-37865-0
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