Cargando…
Quantitative analysis of {332}〈113〉 twinning in a Ti-15Mo alloy by in situ scanning electron microscopy
We have performed quantitative analysis of {332}〈113〉 twinning in a β-Ti-15Mo (wt.%) alloy by in situ scanning electron microscopy and electron backscattering diffraction (EBSD). Microstructure-twinning relations were evaluated by statistical analysis of the evolving twin structure upon deformation...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Taylor & Francis
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5998785/ https://www.ncbi.nlm.nih.gov/pubmed/29915624 http://dx.doi.org/10.1080/14686996.2018.1475824 |
_version_ | 1783331298218082304 |
---|---|
author | Gutierrez-Urrutia, Ivan Li, Cheng-Lin Ji, Xin Emura, Satoshi Tsuchiya, Koichi |
author_facet | Gutierrez-Urrutia, Ivan Li, Cheng-Lin Ji, Xin Emura, Satoshi Tsuchiya, Koichi |
author_sort | Gutierrez-Urrutia, Ivan |
collection | PubMed |
description | We have performed quantitative analysis of {332}〈113〉 twinning in a β-Ti-15Mo (wt.%) alloy by in situ scanning electron microscopy and electron backscattering diffraction (EBSD). Microstructure-twinning relations were evaluated by statistical analysis of the evolving twin structure upon deformation at room temperature. Our analysis reveals that at the early stages of deformation (ε < 1.5 to 2.0%), primary twinning is mainly determined by the applied macroscopic stress resolved on the twin system. Most of the primary twins (~70–80% of the analyzed twins) follow Schmid’s law with respect to the macroscopic stress, and most of the growth twins (~ 85% of the analyzed twins) correspond to the higher stressed variant. In the grain size range studied here (40–120 μm), we find that several twin parameters such as number of twins per grain and number of twins per grain boundary area exhibit grain size dependence. We ascribe these effects to the grain size dependence of twin nucleation stress and apparent critical resolved shear stress for twinning, respectively. |
format | Online Article Text |
id | pubmed-5998785 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Taylor & Francis |
record_format | MEDLINE/PubMed |
spelling | pubmed-59987852018-06-18 Quantitative analysis of {332}〈113〉 twinning in a Ti-15Mo alloy by in situ scanning electron microscopy Gutierrez-Urrutia, Ivan Li, Cheng-Lin Ji, Xin Emura, Satoshi Tsuchiya, Koichi Sci Technol Adv Mater Engineering and Structural materials We have performed quantitative analysis of {332}〈113〉 twinning in a β-Ti-15Mo (wt.%) alloy by in situ scanning electron microscopy and electron backscattering diffraction (EBSD). Microstructure-twinning relations were evaluated by statistical analysis of the evolving twin structure upon deformation at room temperature. Our analysis reveals that at the early stages of deformation (ε < 1.5 to 2.0%), primary twinning is mainly determined by the applied macroscopic stress resolved on the twin system. Most of the primary twins (~70–80% of the analyzed twins) follow Schmid’s law with respect to the macroscopic stress, and most of the growth twins (~ 85% of the analyzed twins) correspond to the higher stressed variant. In the grain size range studied here (40–120 μm), we find that several twin parameters such as number of twins per grain and number of twins per grain boundary area exhibit grain size dependence. We ascribe these effects to the grain size dependence of twin nucleation stress and apparent critical resolved shear stress for twinning, respectively. Taylor & Francis 2018-06-07 /pmc/articles/PMC5998785/ /pubmed/29915624 http://dx.doi.org/10.1080/14686996.2018.1475824 Text en © 2018 The Author(s). Published by National Institute for Materials Science in partnership with Taylor & Francis http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Engineering and Structural materials Gutierrez-Urrutia, Ivan Li, Cheng-Lin Ji, Xin Emura, Satoshi Tsuchiya, Koichi Quantitative analysis of {332}〈113〉 twinning in a Ti-15Mo alloy by in situ scanning electron microscopy |
title | Quantitative analysis of {332}〈113〉 twinning in a Ti-15Mo alloy by in situ scanning electron microscopy |
title_full | Quantitative analysis of {332}〈113〉 twinning in a Ti-15Mo alloy by in situ scanning electron microscopy |
title_fullStr | Quantitative analysis of {332}〈113〉 twinning in a Ti-15Mo alloy by in situ scanning electron microscopy |
title_full_unstemmed | Quantitative analysis of {332}〈113〉 twinning in a Ti-15Mo alloy by in situ scanning electron microscopy |
title_short | Quantitative analysis of {332}〈113〉 twinning in a Ti-15Mo alloy by in situ scanning electron microscopy |
title_sort | quantitative analysis of {332}〈113〉 twinning in a ti-15mo alloy by in situ scanning electron microscopy |
topic | Engineering and Structural materials |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5998785/ https://www.ncbi.nlm.nih.gov/pubmed/29915624 http://dx.doi.org/10.1080/14686996.2018.1475824 |
work_keys_str_mv | AT gutierrezurrutiaivan quantitativeanalysisof332113twinninginati15moalloybyinsituscanningelectronmicroscopy AT lichenglin quantitativeanalysisof332113twinninginati15moalloybyinsituscanningelectronmicroscopy AT jixin quantitativeanalysisof332113twinninginati15moalloybyinsituscanningelectronmicroscopy AT emurasatoshi quantitativeanalysisof332113twinninginati15moalloybyinsituscanningelectronmicroscopy AT tsuchiyakoichi quantitativeanalysisof332113twinninginati15moalloybyinsituscanningelectronmicroscopy |