| 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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Setchi, Rossitza
Cardiff University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023Graphene nanoplatelets reinforced Al-Cu-Mg composite fabricated using laser powder bed fusion: microstructure, mechanical properties, and wear behaviourcitations
- 2021Effect of process parameters on the microstructure and mechanical properties of AA2024 fabricated using selective laser meltingcitations
- 2020Effect of hot cracking on the mechanical properties of Hastelloy X superalloy fabricated by laser powder bed fusion additive manufacturingcitations
- 2019Additive manufacturing of high-strength crack-free Ni-based Hastelloy X superalloycitations
- 2019Effect of hot cracking on the mechanical properties of Hastelloy X superalloy fabricated by laser powder bed fusion additive manufacturingcitations
- 2018Laser powder bed fusion of Hastelloy X: effects of hot isostatic pressing and the hot cracking mechanismcitations
- 2017Characterisation and milling time optimisation of nanocrystalline aluminium powder for selective laser meltingcitations
- 2016Synthesis and characterisation of advanced ball-milled Al-Al2O3 nanocomposites for selective laser meltingcitations
Places of action
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article
Synthesis and characterisation of advanced ball-milled Al-Al2O3 nanocomposites for selective laser melting
Abstract
Selective laser melting (SLM) offers significant potential for the manufacture of the advanced complex-shaped aluminium matrix composites (AMCs) used in the aerospace and automotive domains. Previous studies have indicated that advanced composite powders suitable for SLM include spherical powders with homogeneous reinforcement distribution, a particle size of < 100 μm and good flowability (Carr index < 15%); however, the production of such composite powders continues to be a challenge. Due to the intensive impacts of grinding balls, the high-energy ball-milling (HEBM) process has been employed to refine Al particles and disperse the nano Al2O3 reinforcements in the Al matrix to improve their mechanical properties. Notwithstanding, the specific characteristics of ball-milled powders for SLM and the effect of milling and pause duration on the fabrication of composite powders have not previously been investigated. The aim of this study was to synthesise Al-4 vol.% Al2O3 nano-composite powders using HEBM with two different types of milling and pause combinations. The characteristics of the powders subjected to up to 20 h of milling were investigated. The short milling (10 min) and long pause (15 min) combination provided a higher yield (66%) and narrower particle size distribution range than long milling (15 min) and a short pause (5 min). The nano Al2O3 reinforcements were observed to be dispersed uniformly after 20 h of milling, and the measured Carr index of 13.2% indicated that the ball-milled powder offered good flowability. Vickers micro-hardness tests indicated that HEBM significantly improved the mechanical properties of the ball-milled powders.