This work is an investigation of the aqueous corrosion inhibition of Al-Cu-Mg Alloy in acidic medium using extract of Sida acuta (wire weed) plant as corrosion inhibitor at 10%, 20%, 30% and 40% v/v of the extract. After exposing the alloy to the medium, the results showed that the plant extract inhibited the acid induced corrosion. The presence of Sida acuta plant extract reduces corrosion rate from 0.0012 to 0.0001 MPY and percentage protection increases from 37.42% to 93.63% within a ten-day period with increase in percentage volume of the extract. The result has clearly shown that Sida acuta plant extract can be used as a corrosion inhibitor in the part of chemical plant that is made of Al-Cu-Mg Alloy where acid is used for descaling and cleaning.

An investigation was carried out to produce a composite material of palm kernel fibre and empty water sachet (polyethylene). The percentage composition of the fibre was varied likewise the matrix the reinforcing material was varied from 5 wt. % to 20 wt. %. The materials were heated and poured in a mould. Mechanical properties of the composites were tested and determined. Impact Strength of the materials gave prime information on possible application of the developed material. After the analysis, It was verified that tensile strength decreased with filler loading and the material with 10 wt. % of palm kernel fibre developed a better mechanical property following its high tensile strength and impact strength and thus material will be most useful were strength to weight ratio is needed.

The wear resistance and microstructural features of aluminum AA6063 based composites reinforced with seven different mass fractions of palm kernel shell particles (0, 2.5, 5, 7.5, 10, 12.5 & 15wt%) fabricated by stir-casting, were characterized using pin-on-disk tribometer, optical microscope, and ImageJ package. ImageJ particle analysis revealed both the particle size and shape descriptors for the composites' microstructural features. The average grain sizes of all the composites were higher than that of the unreinforced AA6063 matrix. Wear tests conducted under dry sliding condition show that the volume reduction and specific wear rate increased to a maximum at 5wt% PKS addition and then decreased to the lowest level at 10wt% PKS. Subsequent addition of PKS above 10wt% yielded a further increase in the composites volume loss and specific wear rate. Composite sample reinforced with 10wt% PKS exhibited wear resistance response better than that of the unreinforced alloy. Image analysis afforded a comprehensive understanding of the microstructural features of the composites which influenced their behaviors.