Study on corrosion propensity of welded mild steelbar in soil media around the coastal area of University of Lagos has been carried out using gravimetric method. Six (6) samples each for welded and unwelded mild steels were cut, their initial weights were recorded and buried in two selected soil. The weight losses of these coupons were measured at regular intervals for a period of six months (1...

The mode of operation of mini parabolic solar panels made of germanium, mild steel and aluminium were investigated experimentally, as means of providing heated water on a farmland; the process was also modelled. Angular adjustments of the solar collectors from 70-90o were adopted in order to determine, the best material of construction for the parabolic solar collector and the angular orientati...

Running-in, mild and severe wear are three typical wear regimes of a wear system. The running-in wear is of particular interest in MMC/ steel systems. In this paper, the running-in wear was investigated in the system of a steel disk and Sic-particle-reinforced 2014 Al composite pins. It was found that the wear mechanisms of the system were dominated by abrasion and that the fracture of the rein...

Friction surfacing is an emerging surface engineering technology, developed on the basic principle of friction welding, for depositing wear and corrosion resistant metallic coatings. In the present work coating of tool steel M2 were made on mild steel by friction surfacing by using 2 factorial designs with 3 factors at two levels for each. Process parameters developed a satisfactory deposition ...

Corrosion inhibition of mild steel was studied using L-Dopa in aqueous hydrochloric acid and sulphuric acid solutions. The corrosion behaviours of the steel specimen in the presence of inhibitor weret studied by galvanostatic polarization and weight loss techniques. The measured electrochemical data indicated good inhibition of corrosion in both the corrosive medium in presence of L-DOPA. The c...

This paper presents the effects of varying waveguide material and/or shape on the frequency and joint-time-frequency characteristics of pulsed acoustic emission (AE) events. Forty-eight solid cylindrical waveguides were fabricated from alumina ceramic, mild steel, stainless steel (SS316), 2024-T3 aluminium or extruded Delrin. Three different lengths, two diameters and four sensor face angles we...