The corrosion rates of metals and alloys can be determined by using different electrochemical and nonelectrochemical techniques.1-3 In this study, electrochemical potentiodynamic (1 mVs−1) polarization and galvanostatic pulse polarization techniques were used.
Propargylic alcohol (PA) was used as an inhibitor for pure iron and iron alloys in acidic media,1,4-7 and it was reduced on the analytically pure iron so that it would have no inhibiting effect on analytically pure iron systems.2,3,8 For this reason, it was necessary to investigate the inhibiting effect of PA on the corrosion of analytically pure cobalt and nickel in the 0.5M H2SO4 + x mM PA media (pH = 0.6). The corrosion rates were determined by the following methods:
The rotating cobalt and nickel disk electrodes were polished with sandpaper and washed with double distilled water before each measurement. The solutions were also prepared with double distilled...
