Fig. 2: Continuum-level characteristics of pitting.
From: Pit growth kinetics in aluminum: effects of salt loading and relative humidity

Plots of (a) the cumulative number of pits per unit wetted area and (b) the cumulative volume loss per unit wetted area as a function of time for the first 90 h after exposure are shown for all four environments. As discussed in the methods, machine errors caused two samples exposed at 84% RH to terminate 73 and 64 h after exposure, truncating these experiments prematurely.