Corrosion evaluation of a metal in aqueous media: student corrosion experiment

Abstract

The authors contribute to the experiments that are needed that would acquaint students with unique properties of metal behavior in environments.

The evaluation of corrosion susceptibility of a metal: Student corrosion experiment II

“…The figure compares the corrosion susceptibility of the three corroding agents studied. The results of the experiment and explanations adduced by the students after collective discussion are collated and summarized as follows: (1) the three corroding agents depicted increase in corrosion susceptibility with increase in corroding agent concentrations; (2) corrosion rates of AA1060 in these media are H2SO4 « HC1 < KOH; (3) AA1060, being amphoteric, produced more soluble product(s) at the metal/corroding agent interphase in the order KOH > HC1 » H2SO4; thus, inhibition was fairly attained in H2SO4; (4) H2 gas evolution…”

“…In my earlier reports (3), the potentiostatic and galvanostatic corrosion experimental principles (4,5) were presented for inclusion in our electrochemistry laboratory teaching. This paper seeks to present the principles of the weight-loss method of corrosion evaluation of a metal in aqueous media.…”