Efforts toward the inhibition of crevice corrosion - Part 2

摘要

ELECTROCHEMICAL CREVICE corrosion experiments were carried out on 304 stainless steel in ground water in order to assess the crevice-corrosion inhibition of various inhibitors, including phosphonates, bivalent cation, and surfactants. These studies were made in conjunction with a surface-morphology study by scanning-electron microscopy and a solution analysis by inductively-coupled plasma-atomic emission spectrometry so as to determine the amount of metal ions leached out at different imposed potentials. These two techniques proved the beneficial action of inhibitor application in improving the crevice-corrosion resistance of 304 stainless steel in ground water. The first part of this paper was published in our September, 2004, issue, and covered a description of the experimental details and a discussion of the results from the crevice corrosion measurements. Part 2 begins with the authors' discussion of the results of their solution analysis.