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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
17.19  The influence of increasing solution velocity on the overvoltage-versus-log current density behavior for a solution that experiences com- bined activation–concentration polarization is indicated in Figure 17.26. On the basis of this behavior, make a schematic plot of corrosion rate versus solution velocity for the oxidation of a metal; assume that the oxidation reaction is controlled by activation polarization.
Passivity
17.20Â Â Briefly describe the phenomenon of passiv- ity. Name two common types of alloy that passivate.
17.21Â Â Why does chromium in stainless steels make them more corrosion resistant in many en- vironments than plain carbon steels?
Forms of Corrosion
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