Constitutive Equation and Processing Maps of Al-7Si-0.3 Mg Hybrid Composites: a Novel Approach to Reduce Cost of Material by Using Agro-Industrial Wastes
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The waste materials are not only found abundantly but also a threat to the environment. However, it can be used as a good additive for composite materials which turns industrial-waste into industrial-wealth. The hypothesis of present study is the utilization of the waste materials not only reduces the production cost but also beneficial for the environment. Aluminium with waste particles (agro and industrial) is prepared by using double stir-casting process. The hot deformation behaviour of aluminium alloy and aluminium hybrid composites was studied over deformation temperature range of 300–500 °C and strain rate of 0.1–10 s−1. The processing maps were developed for addition of different weight fractions (0, 7.5, 10 and 12.5%) of waste particles with A356 alloy to identify the safe and unsafe domains during hot processing. The A356/10%RHA-10%Fly ash hybrid composite achieved higher efficiency and high activation energy compare to base alloy and other hybrid composites.
KeywordsAgro-industrial waste Hot deformation behaviour Processing map Microstructure evaluation Environment
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