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The structure and tensile properties of Al-Si alloy hybrid reinforced with alumina-aluminosilicate short fibre

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Abstract

Alumina-aluminosilicate fibre hybrid reinforced aluminium-silicon alloy was fabricated by pressure infiltration route. Tensile test results at room temperature and at 300°C are reported. It is shown that the alumina-aluminosilicate fibre ratio does have a strong influence on the ultimate tensile strength (UTS) of these hybrid composites. At an alumina-aluminosilicate ratio of 3∶2, the optimum UTS of hybrid metal matrix composites (MMC) was obtained. The UTS of only alumina fibre reinforced MMC was improved with increasing fibre volume fraction at 300°C. No fibre put-out was observed on the fracture surface and longitudinal section.

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Jiang, J.Q., Liu, H.N., Ma, A.P. et al. The structure and tensile properties of Al-Si alloy hybrid reinforced with alumina-aluminosilicate short fibre. JOURNAL OF MATERIALS SCIENCE 29, 3767–3773 (1994). https://doi.org/10.1007/BF00357347

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