Potentiodynamic Polarization of Brass, Stainless and Coated Mild Steel in 1M Sodium Chloride Solution

Abstract

Enormous funds are spent on the protection of engineering components and structures annually as a result of corrosion. Degradation sets in, due to electrochemical reaction that takes place between materials and the environment leading to reduced performance. The associated downtime caused by replacement and maintenance of vessels, pipes, valves and other equipment necessitated seeking for techniques and method to efficiently combat corrosion. This study evaluated the potentiodynamic polarization of brass, Coated Mild Steel (CMS) and Stainless Steel (SS) in sodium chloride (NaCl). The samples (1 x 30 x 30 mm3) were used as working electrodes for Potentiodynamic Polarization Experiment (PPE). The samples were cleaned, and soaked in 1M NaCl solution. Open circuit potentials and current densities of the samples were obtained from PPE which were used to evaluate their corrosion rates. The pH of the media was recorded before and after each experiment. The results obtained using PPE in NaCl (in mm/y) were 0.209, 0.0053 and 0.0046; for brass, MSC and SS respectively. The pH of the medium was measured as 10.9.The results revealed that brass had highest corrosion rate in the medium. The least corrosion rate was obtained for Stainless Steel in 1M NaCl followed by Coated Mild Steel.

Data showing the effects of temperature and time variances on nano-additives treatment of mild steel during machining

“…The casting process was carried out with an induction furnace having a maximum temperature capacity of 3000 °C [1], [2], [3], [4], [5], [6]. The furnance was used to melt 150 kg mass of carbon steel at melting temperature of approximately 1539 °C and a pouring temperature of 1545 °C [6], [7], [8].…”

Dataset on experimental investigation of optimum carburizing temperature and holding time of bi- nano additives treatment of AISI 5130 steel

“…Bi- nano additives consisting of pulverized palm kernel and coconut shell with eggshell as an energizer were used as raw materials [1], [2], [3], [4], [5]. Steel boxes of four sets with a dimension of 150×150×150 mm 3 and sixty-four pieces of AISI 5130 steel (20×20×5 mm 3 ) were also used during the research work.…”

Impact of heat treatment on HSS cutting tool (ASTM A600) and its behaviour during machining of mild steel (ASTM A36)

“…Also, it is mandatory the tool have a specific geometry, with clearance angles designed, this will enable the cutting edge in contacting the work piece without affecting the rest of the tool in dragging on the work piece surface [20]. The angle of the cutting face is also important, as is the flute width, number of flutes or teeth, and margin size, although some reports claim that there is no correlation between wear resistance and hardness [21].…”