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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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Biało, Dionizy
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Topics
Publications (6/6 displayed)
- 2016Accuracy of the Parts from Iron Powder Manufactured by Injection Mouldingcitations
- 2014Quantitative Analysis Of The Polymer/Metal Powder Magentic Composites Compacts Structure
- 2013Improvement of Tribological Properties of Metal Matrix Composites by Means of Slide Burnishing
- 2012Analyses of Micro Molding Process of the Thermoplastic Composition with Ceramic Fillers
- 2011Viscosity of polymer composites with high content of metal powders processed by injection moulding
- 2005Influence of the ceramic reinforcement on the fatigue strength of the aluminum-matrix composites subjected to electrodischarge machining
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booksection
Influence of the ceramic reinforcement on the fatigue strength of the aluminum-matrix composites subjected to electrodischarge machining
Abstract
<p>The materials examined were the composites with an Al+20%Si+3%Cu+1%Mg matrix reinforced with 5% of Al<sub>2</sub>O<sub>3</sub>, SiC or Si<sub>3</sub>N<sub>4</sub> particles. The composites were produced by powder metallurgy using hot extrusion. The samples intended for fatigue tests were cut off composite rods using an electricdischarge machine tool equipped with a 0.25 mm brass wire which functioned as the electrode (WEDM). Fatigue tests were conducted under pulsed tension. Samples of the same materials, but prepared by traditional methods, i.e. by grinding, were also tested for the sake of comparison. The samples machined by the electrodischarge method had lower fatigue strength than the samples subjected to grinding. This is related with the different states of the surface layer. After the WEDM machining, the surface layer, a dozen or so micrometers thick, has a fine-crystalline structure with hardness higher than that of the material beneath, it is porous and occasionally contains microcracks. The highest fatigue strength was shown by the composite reinforced with SiC particles.</p>