Corrosive Wear of Alumina Particles Reinforced Al–Si Alloy Composites
| Autor: | Kh. Abd El-Aziz, D. Saber, R. Abdel-Karim, A. A. Kandel |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Corrosion potential Materials science Alloy Electrolyte engineering.material Condensed Matter Physics Microstructure 01 natural sciences Corrosion Reciprocating motion 0103 physical sciences Metallic materials Materials Chemistry engineering Composite material 010306 general physics |
| Zdroj: | Physics of Metals and Metallography. 121:188-194 |
| ISSN: | 1555-6190 0031-918X |
| Popis: | The aim of the present study is to investigate the corrosive wear behavior of Al–Si alloy-matrix composites reinforced by Al2O3 particles. The composites with 0, 10, 15, 20, and 25 wt % of Al2O3 were fabricated using stir-casting method. The corrosive wear test was carried out in 3.5% NaCl electrolyte at an indentor reciprocating speed of 10 and 15 cm/s on a corrosive wear machine. The microstructure of the Al‒Si alloy matrix and its composites was characterized using SEM and EDS methods of investigation. It was concluded that the corrosion resistance of Al–Si alloy-matrix composites under corrosive-wear was increased by increasing the weight % of Al2O3 reinforcements and decreased by increasing the sliding speed. Corrosive wear tests revealed that the corrosion potential shifted to the active side as compared with stagnant conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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