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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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Lenzi, Veniero
University of Aveiro
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023Disentangling stress and strain effects in ferroelectric HfO2citations
- 2023Disentangling stress and strain effects in ferroelectric HfO2citations
- 2023Ferroelectric orthorhombic ZrO2 thin films achieved through nanosecond laser annealingcitations
- 2023Molecular dynamics simulation of Ti metal cutting using a TiN:Ag self-lubricating coated toolcitations
- 2023Ferroelectric Orthorhombic ZrO2 Thin Films Achieved Through Nanosecond Laser Annealing.
- 2021Diffusion of silver in titanium nitride: Insights from density functional theory and molecular dynamicscitations
- 2021All-oxide p−n junction thermoelectric generator based on SnOx and ZnO thin filmscitations
- 2021Zn-Fe Flower-like nanoparticles growth by gas condensationcitations
- 2021All-Oxide p-n Junction Thermoelectric Generator Based on SnOx and ZnO Thin Filmscitations
- 2019Investigation on the intermolecular interactions in aliphatic isocyanurate liquids: revealing the importance of dispersioncitations
Places of action
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article
Molecular dynamics simulation of Ti metal cutting using a TiN:Ag self-lubricating coated tool
Abstract
Silver-ceramic nanocomposite coatings, such as TiN:Ag, are among the most interesting solutions to improve the machining and cutting process of hard-to-cut Ti alloys, since they combine the TiN matrix hardness with the lubricating and protective action of Ag nanoparticles. Therefore, it is important to understand how, when present, Ag distributes at the tool-workpiece interface and how it affects the tribolayer formation and the tool wear. Molecular dynamics simulation results, obtained using a MEAM-based force field, are presented here for the cutting process of a Ti workpiece with a TiN tool, with and without the presence of Ag at the interface, for different cutting speeds. Ag is shown to form a thin protective layer at the workpiece-tool interface that prevents a direct contact between the parts and greatly reduces the tool degradation. Our simulations confirm the importance of Ag in self-lubricating nanocomposite coatings to realize the machining of otherwise hard-to-cut materials. ; This research was funded by the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Funding Contract UIDB/04650/2020 and under the project MCTool21 “Manufacturing of cutting tools for the 21st century: from nano-scale material design to numerical process simulation” (reference: POCI-01-0247-FEDER-045940), co-financed by the European Regional Development Fund, through Portugal 2020 (PT2020), and by the Competitiveness and Internationalization Operational Programme (COMPETE 2020). The authors acknowledge the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing HPC resources that have contributed to the research results reported within this paper.