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.

Dispersoid particles are critical to the control of recrystallization and grain growth behavior during thermomechanical processing of wrought aluminum alloys. The precipitation of dispersoids has some unique characteristics that must be considered to understand the microstructure and properties obtained in the final product. Dispersoids precipitate from a segregated cast structure and therefore are inhomogeneously distributed within a grain. They often precipitate from other phases that form during heating and then redissolve. Finally, their precipitation is often in competition with other microstructural processes, for example, a change in composition of the constituent phases. Understanding these factors is critical to control dispersoid precipitation. Furthermore, the increasing demand to replace primary aluminum with recycled material requires careful control of the dispersoid-forming elements, which tend to accumulate during recycling. Small changes in the amounts of these additions can have a large effect on recrystallization behavior and hence texture and properties.

In this research, the assessment of the chemical composition of the Itobe marble deposit for comparison with the general limestone requirements for cement making was investigated.  Six pits were dug and carefully studied in the area. The research work is aimed at determining the suitability of the Itobe marble deposit in the manufacturing of cement, establish the nature, size and type of the deposit and to estimate the various impurities present and at what concentrations. The soil samples collected were analysed for their chemical properties. Samples were also obtained from river channels and from outcrops of the deposits. The result showed that an appreciable amount of the marble deposit, with CaO in the range of 32.95% to 50.05% and Silica ranging from 1.40% to 7.20%. From these chemical analyses, Itobe limestone showed a great potential in cement production to augment cement availability for building and civil engineering construction in Nigeria.