• P.Vignesh
• P.Senthilkumar
• S.Magibalan
• K.Perumal
• K.Selvaraj

A composite material is a combination of two or more chemically distinct and insoluble phases; its properties and structural performance are superior to those of the constituents acting independently. A continuously metallurgic transition is very important for industrial applications, such as joint structures of space frame constructions in transport industry. In this project, ‘compound casting’ of light metals is investigated, aiming at weight-saving. The substrate used is a wrought aluminium alloy of type AA5xxx, containing magnesium as main alloying element. The melts are aluminium alloys, containing various alloying elements (Cu, Si, Zn), and magnesium. By replacing the natural oxygen layer with a zinc layer, the inherent wetting difficulties were avoided, and compounds with flawless interfaces were successfully produced (no contraction defects, cracks or oxides). Electron microscopy and EDX investigations as well as optical micrographs of the interfacial areas revealed their continuously metallic constitution. Diffusion of alloying elements leads to heat-treatable microstructures in the vicinity of the joining interfaces in Al–Al couples. This permits significant variability of mechanical properties. Without significantly cutting down on wettability, the formation of low-melting intermetallic phases (Al3Mg2 and Al12Mg17 IMPs) at the interface of Al–Mg couples was avoided by applying a protective coating to the substrate. Various processing techniques for the fabrication of Aluminium matrix composites, testing of their mechanical properties are available.

Metal matrix

"LIGHT METAL COMPOSITES BY USING ALUMINIUM ALLOY APPLICATION –A REVIEW", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 11, page no.304-306, November-2017, Available :http://www.jetir.org/papers/JETIR1711056.pdf

"LIGHT METAL COMPOSITES BY USING ALUMINIUM ALLOY APPLICATION –A REVIEW", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 11, page no. pp304-306, November-2017, Available at : http://www.jetir.org/papers/JETIR1711056.pdf