| 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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Abbasi, Alireza
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024Revealing the Effects of Friction Stir Processing on the Microstructural Evolutions and Mechanical Properties of As-Cast Interstitial FeMnCoCrN High-Entropy Alloycitations
- 2022Mechanical Activation-Assisted Solid-State Aluminothermic Reduction of CuO Powders for In-Situ Copper Matrix Composite Fabricationcitations
- 2020The effect of powder addition manner and volume fraction of reinforcement on tribological behavior of Al7075/B<sub>4</sub>C surface composite produced by friction stir processingcitations
- 2013Synthesis of a New Interpenetrated Mixed Ligand Ni(II) Metal–Organic Framework: Structural, Thermal and Fluorescence Studies and its Thermal Decomposition to NiO Nanoparticles
- 2012Synthesis and characterization of tetrapyridophenazine ligand and its novel 1-D metal-organic wave-like coordination polymer of Ni(II) ioncitations
- 2005Structural and Spectroscopic Studies of Solvated Metal Ions
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article
The effect of powder addition manner and volume fraction of reinforcement on tribological behavior of Al7075/B<sub>4</sub>C surface composite produced by friction stir processing
Abstract
<jats:p>Al7075/B<jats:sub>4</jats:sub>C surface composites were fabricated by friction stir processing using four passes. The B<jats:sub>4</jats:sub>C powders were added into the prepared grooves with 1 and 2 mm width at the surface of Al7075 alloy in two different manners. In the first one, the B<jats:sub>4</jats:sub>C powders were added prior to the four consecutive passes in one stage. In the second manner, the powders were added in two stages, prior to the first pass and following the second one. The microstructural evaluations showed that the increase in the volume fraction of reinforcement significantly reduced the matrix grain size. Meanwhile, the reinforcement had a more homogeneous and uniform distribution in the samples processed through four consecutive passes. The maximum hardness and wear resistance was achieved in the one-stage powder-added samples, containing higher volume fraction of the reinforcement. A direct relationship was observed between the wear resistance and the composite layer hardness. The wear mechanism in the Al7075 substrate and the non-reinforced friction stir processed sample was the delamination of unstable aluminum oxide tribolayer. However, in the composite samples, a mechanically mixed layer, containing aluminum, chromium, and iron mixed oxides was formed along with B<jats:sub>4</jats:sub>C on the worn surface. In the two-stage powder-added samples, containing lower amounts of reinforcement, the detachment of mechanically mixed layer resulted in three-body abrasive wear condition and high friction coefficient. However, the most stable mechanically mixed layer was formed on the surface of the one-stage powder-added sample containing higher amounts of B<jats:sub>4</jats:sub>C.</jats:p>