| People | Locations | Statistics |
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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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Skrotzki, Werner
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2025Strengthening mechanisms in Ni and Ni-5Fe alloycitations
- 2024Grain Boundary Sliding During High Pressure Torsion of Nanocrystalline Au‐13Pd Alloy
- 2024Texture of Hot-Compressed Metastable β-Titanium Alloy Ti5321 Studied by Neutron Diffraction
- 2024Adaptive Phase or Variant Formation at the Austenite/Twinned Martensite Interface in Modulated Ni–Mn–Ga Martensitecitations
- 2024Severe plastic deformation for producing superfunctional ultrafine-grained and heterostructured materials: An interdisciplinary review
- 2024Severe plastic deformation for producing Superfunctional ultrafine-grained and heterostructured materials: An interdisciplinary reviewcitations
- 2023Diffusion of Silver in Liquid Tin Depending on the Temperature Gradient Along the Solder in Low-Voltage Power Fuses at Overcurrents
- 2022Phase transformation induced by high pressure torsion in the high-entropy alloy CrMnFeCoNicitations
- 2021Surface hardening of high- and medium-entropy alloys by mechanical attrition at room and cryogenic temperaturescitations
- 2020Low temperature deformation mechanisms of single crystalline intermetallic compound YAgcitations
- 2020Effect of Stacking Fault Energy on Microstructure and Texture Evolution during the Rolling of Non-Equiatomic CrMnFeCoNi High-Entropy Alloys
- 2020Microstructure, Texture, and Strength Development during High-Pressure Torsion of CrMnFeCoNi High-Entropy Alloy
- 2018Deformation mechanisms of nil temperature ductile polycrystalline B2 intermetallic compound YAgcitations
- 2018Role of Grain Boundary Sliding in Texture Evolution for Nanoplasticitycitations
- 2018Universal scaling behavior of the upper critical field in strained FeSe0.7Te0.3 thin filmscitations
- 2018Revealing Grain Boundary Sliding from Textures of a Deformed Nanocrystalline Pd–Au Alloycitations
- 2017The influence of the in-plane lattice constant on the superconducting transition temperature of FeSe0.7Te0.3 thin films
- 2016Mechanical properties, structural and texture evolution of biocompatible Ti–45Nb alloy processed by severe plastic deformationcitations
- 2016Ti/Al multi-layered sheets: Differential speed rolling (Part B)citations
- 2016Hall-plot of the phase diagram for Ba(Fe1-xCox)2As2citations
- 2016Hall-plot of the phase diagram for Ba(Fe1−xCox)2As2
- 2016Shear-Coupled Grain Growth and Texture Development in a Nanocrystalline Ni-Fe Alloy during Cold Rollingcitations
- 2015Factors influencing the elastic moduli, reversible strains and hysteresis loops in martensitic Ti-Nb alloyscitations
- 2013Processing of intermetallic titanium aluminide wirescitations
- 2013Thermal stability and phase transformations of martensitic Ti-Nb alloyscitations
- 2011Ti-Al composite wires with high specific strengthcitations
- 2010Studies of fatigue crack propagation : a multiscale cohesive zone model
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article
Thermal stability and phase transformations of martensitic Ti-Nb alloys
Abstract
Aiming at understanding the governing microstructural phenomena during heat treatments of Ni-free Ti-based shape memory materials for biomedical applications, a series of Ti-Nb alloys with Nb concentrations up to 29 wt% was produced by cold-crucible casting, followed by homogenization treatment and water quenching. Despite the large amount of literature available concerning the thermal stability and ageing behavior of Ti-Nb alloys, only few studies were performed dealing with the isochronal transformation behavior of initially martensitic Ti-Nb alloys. In this work, the formation of martensites (α′ and α″) and their stability under different thermal processing conditions were investigated by a combination of x-ray diffraction, differential scanning calorimetry, dilatometry and electron microscopy. The effect of Nb additions on the structural competition in correlation with stable and metastable phase diagrams was also studied. Alloys with 24 wt% Nb or less undergo a transformation sequence on heating from room temperature to 1155 K. In alloys containing >24 wt% Nb α″ martensitically reverts back to β0, which is highly unstable against chemical demixing by formation of isothermal ωiso. During slow cooling from the single phase β domain α precipitates and only very limited amounts of α″ martensite form. ; publishedVersion