The structure and tensile properties of Al-Si alloy hybrid reinforced with alumina-aluminosilicate short fibre
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.
KeywordsUltimate Tensile Strength Metal Matrix Composite Fibre Volume Hybrid Composite Fibre Volume Fraction
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- 1.J. Doychak, J. Min. Met. Mater., June (1992) 46.Google Scholar
- 4.P. Rohatgi, J. Min. Met. Mater., April (1991) 10.Google Scholar
- 5.M. E. Toaz and M. D. Smalc, Light Metal Age, 12 (1986) 29.Google Scholar
- 6.D. Richter, Advanced Mater. Tech. Inter. 60 (1992) 57.Google Scholar
- 11.Data sheet from China Luoyang Refractory Mater. Co.Google Scholar
- 12.J. W. Weeton, D. M. Peters and K. L. Thomas, “Engineers Guide to Composite Materials” (America Society for Metals, 1987) pp. 7–18.Google Scholar
- 15.Z. R. Gu, “Mechanics of Composites Reinforced with, short fibres”, 1st Edn (Defence Industry Press, Beijing, 1990) p. 93.Google Scholar