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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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Wang, Bo
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2025Ti3C2Tx‐UHMWPE Nanocomposites—Towards an Enhanced Wear‐Resistance of Biomedical Implantscitations
- 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
- 2023Influence of ferrite-austenite distribution in 2205 duplex stainless steel on high-temperature solution nitriding behaviourcitations
- 2023Influence of ferrite-austenite distribution in 2205 duplex stainless steel on high-temperature solution nitriding behaviourcitations
- 2023Phase Stability and Deformation Modes in Functionally Graded Metastable Austenitic Stainless Steel; A Novel Approach to Evaluate the Role of Nitrogencitations
- 2023Phase Stability and Deformation Modes in Functionally Graded Metastable Austenitic Stainless Steel; A Novel Approach to Evaluate the Role of Nitrogencitations
- 2023Experimental and computational analysis of stacking fault energy in B-doped Fe50-XMn30Co10Cr10BX multi-principal elements alloyscitations
- 2022Low-Temperature Gaseous Nitriding of 2205 Duplex Stainless Steel: Effect of Temperature and Nitriding Potential
- 2022Low-Temperature Gaseous Nitriding of 2205 Duplex Stainless Steel: Effect of Temperature and Nitriding Potential
- 2021Thermochemical surface hardening of Ti-6Al-4V: On the role of temperature and treatment mediacitations
- 2021Thermochemical surface hardening of Ti-6Al-4V: On the role of temperature and treatment mediacitations
- 2021Polydopamine coated Si nanoparticles allow for improved mechanical and electrochemical stabilitycitations
- 2020Deformation mechanisms in meta-stable and nitrogen-stabilized austenitic stainless steel during severe surface deformationcitations
- 2020Deformation mechanisms in meta-stable and nitrogen-stabilized austenitic stainless steel during severe surface deformationcitations
- 2017Cofibrillization of pathogenic and functional amyloid proteins with gold nanoparticles against amyloidogenesiscitations
- 2016Inhibition of hIAPP amyloid aggregation and pancreatic β-cell toxicity by OH-terminated PAMAM dendrimercitations
- 2014Coupling Epitaxy, Chemical Bonding, and Work Function at the Local Scale in Transition Metal-Supported Graphenecitations
- 2010Coupling Epitaxy, Chemical Bonding, and Work Function at the Local Scale in Transition Metal-Supported Graphenecitations
Places of action
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article
Thermochemical surface hardening of Ti-6Al-4V: On the role of temperature and treatment media
Abstract
<p>The present work addresses the surfacehardening and heat treatment response of Ti-6Al-4V grades G5 and G23 onthermochemical surface treatment in different temperature regimes aswell as in different gaseous and plasma-based media. Grades G5 and G23were subjected to gaseous surface hardening using various gascompositions and temperature regimes. Two different series of gaseoussurface treatments were carried out:</p><p>1)carbo-oxidizing of G23 in mill-annealed condition was performed in COgas at (high) temperatures ranging from 777 to 1027 °C. Treatment at1027 °C resulted in the deepest case with the formation of a thinsurface layer of titanium sub-oxides supported by a thick TiC<sub>x</sub>O<sub>1-x</sub> layer as the dominant phase. Post-nitriding of the carbo-oxidized specimen raised the hardness of the TiC<sub>x</sub>O<sub>1-x</sub> phase by the incorporation of nitrogen, yielding values up to ~2,900 HV and multi-layered structures.</p><p>2) Carbo-oxidizing of G5 with a bi-modal microstructure in CO/CO<sub>2</sub>gas mixture at (intermediate) temperatures in the range 677 - 777 °C.Treatment at 777 °C resulted in a surface hardness of ~1,900 HV and a~60 μm-thick diffusion zone.</p><p>In addition to gaseoussurface hardening, also plasma-assisted methods were applied andcompared to their gaseous counterparts. Intermediate- andlow-temperature plasma treatments were carried out on G23:</p><p>3) plasma (carbo-nitro)oxidizing was performed in a CO<sub>2</sub> and N<sub>2</sub> gas mixture at 750 °C and (carbo-)oxidizing in CO<sub>2</sub> gas at 650 °C.</p><p>4) Plasma nitriding was conducted in a N<sub>2</sub>/H<sub>2</sub>gas mixture at 750 °C and 850 °C. The widely different types oftreatments applied in this work represent the diversity of the gaseousand plasma-based thermochemical methods that can be applied for surfaceengineering of titanium alloys.</p>