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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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Kamat, Amar M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2022Piezoresistive 3D graphene-PDMS spongy pressure sensors for IoT enabled wearables and smart productscitations
- 20213D Printed Graphene-Coated Flexible Lattice as Piezoresistive Pressure Sensorcitations
- 2021Optimizing harbor seal whisker morphology for developing 3D-printed flow sensorcitations
- 2021Optimizing harbor seal whisker morphology for developing 3D-printed flow sensorcitations
- 2021Biomimetic Soft Polymer Microstructures and Piezoresistive Graphene MEMS Sensors using Sacrificial Metal 3D Printingcitations
- 2021Fabrication of polymeric microstructures
- 2021Bioinspired PDMS-graphene cantilever flow sensors using 3D printing and replica mouldingcitations
- 2021Bioinspired PDMS-graphene cantilever flow sensors using 3D printing and replica mouldingcitations
- 2020PDMS Flow Sensors With Graphene Piezoresistors Using 3D Printing and Soft Lithographycitations
- 2019Bioinspired Cilia Sensors with Graphene Sensing Elements Fabricated Using 3D Printing and Castingcitations
- 2019Fish-inspired flow sensing for biomedical applications
- 2019Laser-Sustained Plasma (LSP) Nitriding of Titanium: A Reviewcitations
- 2019Laser-sustained plasma (LSP) nitriding of titanium:A reviewcitations
- 2017A two-step laser-sustained plasma nitriding process for deep-case hardening of commercially pure titaniumcitations
- 2017Enhancement of CP-titanum wear resistance using a two-step CO2 laser-sustained plasma nitriding processcitations
- 2016Effect of CO 2 Laser-Sustained Nitrogen Plasma on Heat and Mass Transfer During Laser-Nitriding of Commercially-Pure Titaniumcitations
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article
Enhancement of CP-titanum wear resistance using a two-step CO2 laser-sustained plasma nitriding process
Abstract
<p>In this paper, a method of forming hard, wide-area, crack-free, and wear-resistant nitrided cases on commercially-pure titanium using a 3.5 kW CO<sub>2</sub> laser-sustained plasma is described. This surface hardening method was comprised of two steps: (1) a laser-sustained nitrogen plasma was first used to nitride the titanium substrate; and (2) a laser-sustained argon plasma was then employed to remelt the nitrided layer deposited in the first step. Previous research using single laser trail experiments had shown that the (second) remelting step can eliminate cracks formed during the (first) nitriding step and homogenize the nitrided layer. In this work, the two-step nitriding-remelting process was extended to wider surface areas by depositing multiple overlapping trails at four different nitriding speeds and a constant remelting speed. The hardened layer was characterized using x-ray diffraction (XRD), optical metallography, and hardness testing. Reciprocating ball-on-flat wear tests were conducted to assess the wear resistance of the nitrided case, with the wear scar being characterized using scanning electron microscopy (SEM) and optical profilometry. Crack-free, hard cases of depths up to 600 μm and average hardness values up to 641 ± 86 HV<sub>0.3</sub> were observed. The LSP nitriding-remelting treatment was found to improve the wear resistance of the base metal (CP-Ti) by up to 80%.</p>