Corrosion behaviour of sinter forged aluminium composites during hot deformation

A galvanostatic pulse technique was used to determine corrosion behavior of sinter-forged aluminium composites. Specimens were prepared using powder metallurgy (P/M) manufacturing techniques, with two different initial relative density and various carbide reinforcements such as titanium carbide (TiC), molybdenum carbide (Mo₂C), iron carbide (Fe₃C) and tungsten carbide (WC). The specimens were machined and molded in a thermo-plastic material so that a surface area of 1 cm² is exposed in a solution of 3.5wt% water solution of NaCl during the corrosion test. The corrosion behavior of the sinter-forged aluminium composites were studied alongside microstructure studies to expose corrosion dynamics and presented in this report.