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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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Zia, Abdul Wasy
Heriot-Watt University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Innovative Tin and hard carbon architecture for enhanced stability in lithium-ion battery anodescitations
- 2024Sputtered Hard Carbon for High-Performance Energy Storage Batteries
- 2024Designing Molybdenum Trioxide and Hard Carbon Architecture for Stable Lithium‐Ion Battery Anodescitations
- 2024Wear-resistant and adherent nanodiamond composite thin film for durable and sustainable silicon carbide mechanical seals.citations
- 2024Circular usage of waste cooking oil towards green electrical discharge machining process with lower carbon emissionscitations
- 2024Oxygen concentration – a governing parameter for microstructural tailoring of duplex AlCrSiON coatings for superior mechanical, tribological, and anti-corrosion performancecitations
- 2024Wear-resistant and Adherent Nanodiamond Composite Thin Film for Durable and Sustainable Silicon Carbide Mechanical Sealscitations
- 2024Role of scandium addition to microstructure, corrosion resistance, and mechanical properties of AA7085/ZrB2+Al2O3 compositescitations
- 2024Precision depth-controlled isolated silver nanoparticle-doped diamond-like carbon coatings with enhanced ion release, biocompatibility, and mechanical performancecitations
- 2023Soft diamond-like carbon coatings with superior biocompatibility for medical applicationscitations
- 2023Multi-layered Sn and Hard Carbon Architectures for Long-Term Stability and High-Capacity Lithium-Ion Battery Anodes
- 2023Role of biodegradable dielectrics toward tool wear and dimensional accuracy in Cu-mixed die sinking EDM of Inconel 600 for sustainable machiningcitations
- 2023Role of biodegradable dielectrics toward tool wear and dimensional accuracy in Cu-mixed die sinking EDM of Inconel 600 for sustainable machining
- 2023Advancing Lithium-Ion Battery Anodes: Novel Sn and Hard Carbon Architectures for Long-Term Stability and High Capacity
- 2022Disrupting biofilm and eradicating bacteria by Ag-Fe3O4@MoS2 MNPs nanocomposite carrying enzyme and antibioticscitations
- 2013Epitaxial growth of cerium oxide thin films by pulsed laser depositioncitations
- 2013Effect of Diamond like Carbon Coating Thickness on Stainless Steel Substrate
- 2012 Fracture Toughness of Plasma Coated Zirconia(ZrO₂)
- 2012Mechanical Characterization of PECVD coated Materials by Indentation Techniques and Finite Element Simulation
Places of action
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article
Oxygen concentration – a governing parameter for microstructural tailoring of duplex AlCrSiON coatings for superior mechanical, tribological, and anti-corrosion performance
Abstract
This study investigates the impact of increasing oxygen levels on physical, structural, and mechanical properties and tribological performance of duplex AlCrSiON coatings. AISI H13 steel and tungsten carbide substrates are coated using arc ion plating with increasing oxygen flow rates up to 200 sccm to deposit coatings with varying oxygen concentrations. High-resolution transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and three-dimensional optical profilometry are used to study morphological and structural properties. Correspondingly, the coatings are assessed for hardness, adhesion strength, friction coefficient, and resistance against corrosion and wear. A 50 to 100 sccm oxygen flow rate appeared as an optimal range to receive lower surface roughness. Generally, the addition of oxygen has compromised hardness and friction coefficient but adhesion strength, wear and corrosion resistance improve with increasing oxygen concentrations. The immersion tests have identified pitting corrosion as a dominating failure mechanism for AlCrSiON coatings when exposed to molten A380 aluminium alloy. This corrosion resistance stemmed from their dense columnar microstructure, excellent thermal stability, the fcc-(Al, Cr)2O3 phase structure, and the presence of compact Cr2O3 and Al2O3 nanocrystals. This study demonstrates that controlled oxygen concentration is a crucial parameter for tuning the microstructure of AlCrSiON coatings to achieve superior mechanical, tribological, and anti-corrosion performance, particularly for high-pressure die-casting applications.