RT Journal Article
T1 Mechanical behaviour of pressed and sintered titanium alloys obtained from master alloy addition powders
A1 Bolzoni, Leandro
A1 García Esteban, Pablo
A1 Ruiz Navas, Elisa María
A1 Gordo Odériz, Elena
AB The fabrication of the workhorse Ti-6Al-4V alloy and of the Ti-3Al-2.5V alloy was studied considering the master alloy addition variant of the blending elemental approach conventionally used for titanium powder metallurgy. The powders were characterised by means thermal analysis and X-ray diffraction and shaped by means of uniaxial pressing. The microstructural evolution with the sintering temperature (900-1400 degrees C) was evaluated by SEM and EDS was used to study the composition. XRD patterns as well as the density by Archimedes method were also obtained. The results indicate that master alloy addition is a suitable way to fabricate well developed titanium alloy but also to produce alloy with the desired composition, not available commercially. Density of 4.3 g/cm(3) can be obtained where a temperature higher than 1200 degrees C is needed for the complete diffusion of the alloying elements. Flexural properties comparable to those specified for wrought Ti-6Al-4V medical devices are, generally, obtained.
PB Elsevier
SN 1751-6161
YR 2012
FD 2012-11
LK https://hdl.handle.net/10016/17214
UL https://hdl.handle.net/10016/17214
LA eng
NO The authors want to acknowledge the financial support from the Spanish Ministry of Science through the R&D ProjectsMAT2009-14448-C02-02 and MAT2009-14547-C02-02, and from Regional Government of Madrid through the ESTRUMAT (S2009/MAT-1585) project.
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RD 20 may. 2024