Microstructural Evolution of Ti-6Al-7Nb Alloy During High Pressure Torsion


Autoria(s): Pinheiro, Tiago Santos; Gallego, Juno; Bolfarini, Claudemiro; Kiminami, Claudio Shyinti; Jorge, Alberto Moreira; Botta, Walter Jose
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/09/2012

Resumo

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 alpha and the beta 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.

Formato

792-795

Identificador

http://dx.doi.org/10.1590/S1516-14392012005000102

Materials Research-ibero-american Journal of Materials. São Carlos: Universidade Federal de São Carlos (UFSCar), Dept Engenharia Materials, v. 15, n. 5, p. 792-795, 2012.

1516-1439

http://hdl.handle.net/11449/9926

10.1590/S1516-14392012005000102

S1516-14392012005000102

WOS:000309191500017

Idioma(s)

eng

Publicador

Universidade Federal de São Carlos (UFSCar), Dept Engenharia Materials

Relação

Materials Research-ibero-american Journal of Materials

Direitos

openAccess

Palavras-Chave #high pressure torsion #severe plastic deformation #titanium alloys #microstructural analysis
Tipo

info:eu-repo/semantics/article