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Crystallographic Features of Phase Transformations during the Continuous Cooling of a Ti6Al4V Alloy from the Single-Phase β-Region
Crystallographic relationships between α- and β-phases resulting from phase transformations, which took place during the continuous water quenching (WQ), air cooling (AC) and furnace cooling (FC) of a Ti6Al4V plates solution treated at 1065 °C, were investigated by methods of electron backscatter di...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9456582/ https://www.ncbi.nlm.nih.gov/pubmed/36079221 http://dx.doi.org/10.3390/ma15175840 |
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author | Naschetnikova, Inna A. Stepanov, Stepan I. Redikultsev, Andrey A. Yarkov, Valentin Yu. Zorina, Maria A. Lobanov, Mikhail L. |
author_facet | Naschetnikova, Inna A. Stepanov, Stepan I. Redikultsev, Andrey A. Yarkov, Valentin Yu. Zorina, Maria A. Lobanov, Mikhail L. |
author_sort | Naschetnikova, Inna A. |
collection | PubMed |
description | Crystallographic relationships between α- and β-phases resulting from phase transformations, which took place during the continuous water quenching (WQ), air cooling (AC) and furnace cooling (FC) of a Ti6Al4V plates solution treated at 1065 °C, were investigated by methods of electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). WQ, AC and FC resulted in typical martensite, basket-weave and parallel-plate Widmanstatten structures, respectively. The experimental distribution of α/β-misorientations deviated from BOR at set discrete angles close to 22, 30, 35 and 43°. The experimental spectra of angles were confirmed by theoretical calculations of the possible misorientations between the α and β phases through the β(o)→α→β(II) –transformation path based on Burgers orientation relationship (BOR). Joint analysis of the experimental data and theoretical calculations revealed that the secondary β(II)-phase was precipitated according to the sequence β(o)→α→β(II) during continuous cooling from the single-phase β-region. Similar spectra for α/β-phase misorientations for all investigated cooling rates acknowledged the similar transformation mechanisms and dominant shear component of the phase transformations. |
format | Online Article Text |
id | pubmed-9456582 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-94565822022-09-09 Crystallographic Features of Phase Transformations during the Continuous Cooling of a Ti6Al4V Alloy from the Single-Phase β-Region Naschetnikova, Inna A. Stepanov, Stepan I. Redikultsev, Andrey A. Yarkov, Valentin Yu. Zorina, Maria A. Lobanov, Mikhail L. Materials (Basel) Article Crystallographic relationships between α- and β-phases resulting from phase transformations, which took place during the continuous water quenching (WQ), air cooling (AC) and furnace cooling (FC) of a Ti6Al4V plates solution treated at 1065 °C, were investigated by methods of electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). WQ, AC and FC resulted in typical martensite, basket-weave and parallel-plate Widmanstatten structures, respectively. The experimental distribution of α/β-misorientations deviated from BOR at set discrete angles close to 22, 30, 35 and 43°. The experimental spectra of angles were confirmed by theoretical calculations of the possible misorientations between the α and β phases through the β(o)→α→β(II) –transformation path based on Burgers orientation relationship (BOR). Joint analysis of the experimental data and theoretical calculations revealed that the secondary β(II)-phase was precipitated according to the sequence β(o)→α→β(II) during continuous cooling from the single-phase β-region. Similar spectra for α/β-phase misorientations for all investigated cooling rates acknowledged the similar transformation mechanisms and dominant shear component of the phase transformations. MDPI 2022-08-24 /pmc/articles/PMC9456582/ /pubmed/36079221 http://dx.doi.org/10.3390/ma15175840 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Naschetnikova, Inna A. Stepanov, Stepan I. Redikultsev, Andrey A. Yarkov, Valentin Yu. Zorina, Maria A. Lobanov, Mikhail L. Crystallographic Features of Phase Transformations during the Continuous Cooling of a Ti6Al4V Alloy from the Single-Phase β-Region |
title | Crystallographic Features of Phase Transformations during the Continuous Cooling of a Ti6Al4V Alloy from the Single-Phase β-Region |
title_full | Crystallographic Features of Phase Transformations during the Continuous Cooling of a Ti6Al4V Alloy from the Single-Phase β-Region |
title_fullStr | Crystallographic Features of Phase Transformations during the Continuous Cooling of a Ti6Al4V Alloy from the Single-Phase β-Region |
title_full_unstemmed | Crystallographic Features of Phase Transformations during the Continuous Cooling of a Ti6Al4V Alloy from the Single-Phase β-Region |
title_short | Crystallographic Features of Phase Transformations during the Continuous Cooling of a Ti6Al4V Alloy from the Single-Phase β-Region |
title_sort | crystallographic features of phase transformations during the continuous cooling of a ti6al4v alloy from the single-phase β-region |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9456582/ https://www.ncbi.nlm.nih.gov/pubmed/36079221 http://dx.doi.org/10.3390/ma15175840 |
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