Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion

Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion

Ti-6Al-7Nb alloys are being evaluated for biomedical applications, in substitution of the more conventional Ti-6Al-7V. Both types of alloys present a microstructure containing the α and the β phases, which result in good compromise for mechanical applications. In the present work Ti-6Al-7Nb alloys were processed by High Pressure Torsion (HPT), varying the number of revolutions and thus the total imposed strain. X-Ray Diffraction (XRD) results revealed the formation of different crystallographic textures in samples subjected to HPT. Microhardness distribution, across the diameters of the disks, is rather homogeneous for all samples, with higher values for those subjected to 03 and 05 turns. Transmission electron microscopy (TEM) micrographs have showed that an ultra-fine grained microstructure was obtained in all the samples.

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Main Authors: Pinheiro,Tiago Santos, Gallego,Juno, Bolfarini,Claudemiro, Kiminami,Cláudio Shyinti, Jorge Jr.,Alberto Moreira, Botta Filho,Walter José
Format: Digital revista
Language:English
Published: ABM, ABC, ABPol 2012
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000500017
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spelling oai:scielo:S1516-143920120005000172012-09-18Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsionPinheiro,Tiago SantosGallego,JunoBolfarini,ClaudemiroKiminami,Cláudio ShyintiJorge Jr.,Alberto MoreiraBotta Filho,Walter José high pressure torsion severe plastic deformation titanium alloys microstructural analysis Ti-6Al-7Nb alloys are being evaluated for biomedical applications, in substitution of the more conventional Ti-6Al-7V. Both types of alloys present a microstructure containing the α and the β phases, which result in good compromise for mechanical applications. In the present work Ti-6Al-7Nb alloys were processed by High Pressure Torsion (HPT), varying the number of revolutions and thus the total imposed strain. X-Ray Diffraction (XRD) results revealed the formation of different crystallographic textures in samples subjected to HPT. Microhardness distribution, across the diameters of the disks, is rather homogeneous for all samples, with higher values for those subjected to 03 and 05 turns. Transmission electron microscopy (TEM) micrographs have showed that an ultra-fine grained microstructure was obtained in all the samples.info:eu-repo/semantics/openAccessABM, ABC, ABPolMaterials Research v.15 n.5 20122012-10-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000500017en10.1590/S1516-14392012005000102
institution SCIELO
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country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Pinheiro,Tiago Santos
Gallego,Juno
Bolfarini,Claudemiro
Kiminami,Cláudio Shyinti
Jorge Jr.,Alberto Moreira
Botta Filho,Walter José
spellingShingle Pinheiro,Tiago Santos
Gallego,Juno
Bolfarini,Claudemiro
Kiminami,Cláudio Shyinti
Jorge Jr.,Alberto Moreira
Botta Filho,Walter José
Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion
author_facet Pinheiro,Tiago Santos
Gallego,Juno
Bolfarini,Claudemiro
Kiminami,Cláudio Shyinti
Jorge Jr.,Alberto Moreira
Botta Filho,Walter José
author_sort Pinheiro,Tiago Santos
title Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion
title_short Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion
title_full Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion
title_fullStr Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion
title_full_unstemmed Microstructural evolution of Ti-6Al-7Nb alloy during high pressure torsion
title_sort microstructural evolution of ti-6al-7nb alloy during high pressure torsion
description Ti-6Al-7Nb alloys are being evaluated for biomedical applications, in substitution of the more conventional Ti-6Al-7V. Both types of alloys present a microstructure containing the α and the β phases, which result in good compromise for mechanical applications. In the present work Ti-6Al-7Nb alloys were processed by High Pressure Torsion (HPT), varying the number of revolutions and thus the total imposed strain. X-Ray Diffraction (XRD) results revealed the formation of different crystallographic textures in samples subjected to HPT. Microhardness distribution, across the diameters of the disks, is rather homogeneous for all samples, with higher values for those subjected to 03 and 05 turns. Transmission electron microscopy (TEM) micrographs have showed that an ultra-fine grained microstructure was obtained in all the samples.
publisher ABM, ABC, ABPol
publishDate 2012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000500017
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AT kiminamiclaudioshyinti microstructuralevolutionofti6al7nballoyduringhighpressuretorsion
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