Manufacture, Microstructure and Property Relationship for a Fibre Reinforced Metal
The microstructure which results from the combination of production route and component choice is shown to influence the mechanical performance of a Nicalon reinforced aluminium-7%silicon-0.4%magnesium alloy. The microstructure is very complicated with silicon particles and iron-containing intermetallic phases in the matrix forming bridges between fibres. Formation of a spinel phase is observed at the Nicalon/matrix interface and also some suggestion of a magnesium-enriched zone. Mechanical performance of the composite is much poorer than expected and the reason for this is explained in terms of the microstructure.
KeywordsMagnesium Alloy Energy Dispersive Spectrometer Silicon Particle Interfacial Shear Stress Production Route
Unable to display preview. Download preview PDF.