—By the measurement of weight changes with time,
the extents of corrosion on specimens of mild steel, medium
carbon steel, brass and aluminum exposed to the laboratory
atmosphere and 0.1M solutions of sodium chloride, ammonium
hydroxide and hydrochloric acid were obtained. These solutions,
respectively, represent salt, basic and acid environments that
are usually encountered by the test metals in actual service.
Corrosion – time graphs were then drawn for each exposure
environment to facilitate the assessment of the relative
aggressiveness of each environment on the test metals. A
graphical illustration was further made to show the relative
aggressiveness of the environments on any particular metal.
—Laboratory environments, mild steel, medium
carbon steel, brass, aluminum.
J. I. Sodiki is with the Department of Mechanical Engineering at Rivers
State University of Science and Technology, Port Harcourt, Nigeria (e-mail:
Cite: J. I. Sodiki, "The Relative Corrosion Severity of Laboratory
Environments on Mild Steel, Medium Carbon Steel, Brass
and Aluminium," International Journal of Engineering and Technology vol. 7, no. 6, pp. 453-458, 2015.