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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Zehetbauer, M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2018Constitution of the binary M-Sb systems (M = Ti, Zr, Hf) and physical properties of MSb2citations
- 2018Strengthening of a biodegradable Mg–Zn–Ca alloy ZX50 after processing by HPT and heat treatmentcitations
- 2018Texture and microstructure of HPT-processed Fe-based shape memory alloyscitations
- 2017Microstructure and Texture Evolutions of Biomedical Ti-13Nb-13Zr Alloy Processed by Hydrostatic Extrusioncitations
- 2017Thermal stability and latent heat of Nb–rich martensitic Ti-Nb alloyscitations
- 2017Giant thermal expansion and α-precipitation pathways in Ti-Alloyscitations
- 2017Influence of testing orientation on mechanical properties of Ti45Nb deformed by high pressure torsioncitations
- 2016Mechanical properties, structural and texture evolution of biocompatible Ti–45Nb alloy processed by severe plastic deformationcitations
- 2016Ba-filled Ni-Sb-Sn based skutterudites with anomalously high lattice thermal conductivitycitations
- 2015Thermal stability of hpt-induced omega phase in biocompatible ti-16.1Nb alloys
- 2015Precipitation processes in nanostructured 7475 aluminium alloy
- 2015Phase transformations and mechanical properties of biocompatible Ti-16.1Nb processed by severe plastic deformationcitations
- 2015Nanostructure formation mechanism during in-situ consolidation of copper by room-temperature ball millingcitations
- 2014Enhancement of mechanical properties of biocompatible Ti-45Nb alloy by hydrostatic extrusioncitations
- 2013Percolating porosity in ultrafine grained copper processed by High Pressure Torsioncitations
- 2012Role of texture in understanding creep flow in HPT-processed ultrafine grained copper
- 2012Deformation induced percolating porosity in High Pressure Torsioned (HPT) coppercitations
- 2010Plasticity and grain boundary diffusion at small grain sizescitations
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article
Mechanical properties, structural and texture evolution of biocompatible Ti–45Nb alloy processed by severe plastic deformation
Abstract
<p>Biocompatible β Ti–45Nb (wt%) alloys were subjected to different methods of severe plastic deformation (SPD) in order to increase the mechanical strength without increasing the low Young׳s modulus thus avoiding the stress shielding effect. The mechanical properties, microstructural changes and texture evolution were investigated, by means of tensile, microhardness and nanoindentation tests, as well as TEM and XRD. Significant increases of hardness and ultimate tensile strength up to a factor 1.6 and 2, respectively, could be achieved depending on the SPD method applied (hydrostatic extrusion – HE, high pressure torsion – HPT, and rolling and folding – R&F), while maintaining the considerable ductility. Due to the high content of β-stabilizing Nb, the initial lattice structure turned out to be stable upon all of the SPD methods applied. This explains why with all SPD methods the apparent Young׳s modulus measured by nanoindentation did not exceed that of the non-processed material. For its variations below that level, they could be quantitatively related to changes in the SPD-induced texture, by means of calculations of the Young׳s modulus on basis of the texture data which were carefully measured for all different SPD techniques and strains. This is especially true for the significant decrease of Young׳s modulus for increasing R&F processing which is thus identified as a texture effect. Considering the mechanical biocompatibility (percentage of hardness over Young׳s modulus), a value of 3–4% is achieved with all the SPD routes applied which recommends them for enhancing β Ti-alloys for biomedical applications.</p>