Fig. 3.1 Polarization curves illustrating charge-transfer polarization (Tafel behavior) for a single half-cell reaction. (a) Anodic polarization. (b) Cathodic polarization. (c) Both anodic and cathodic polarization More

Fig. 5.41 Approximate anodic polarization curve for iron and cathodic polarization curves for oxygen under several conditions and for nitrite ions. The polarization curves are used to estimate the effects of these environments on corrosion rate. Estimated Ecorr and icorr for the several More

Fig. 9.7 Cyclic polarization curves of sintered 316L specimens. Polarization is started at the free corrosion potential More

Fig. 12.6 Polarization is caused by an accumulation of positive ions near the anode and negative ions near the cathode. More

Fig. 12.7 Polarization at the cathode decreases the cell potential. Increased convection decreases the polarization. The effects of anode polarization are similar. More

Fig. 1.12 Potentiokinetic polarization curve and electrode potential values at which SCC frequently appears More

Fig. 1.13 Potentiokinetic polarization curve and electrode potential values at which intergranular and transgranular SCC appears in a 10% NaOH solution at 288 °C (550 °F). (a) Alloy 600. (b) Alloy 800. (c) AISI type 304 stainless steel More

Fig. 17.41 Potentiodynamic polarization curves for carbon-manganese steel in 1 N sodium carbonate plus 1 N sodium bicarbonate at 90 °C (195 °F) showing the domains of behavior predicted from curves. Source: Ref 17.71 More

Fig. 17.42 Anodic polarization curves for aluminum alloy 7075-T651 in deaerated 3.5% NaCl solution showing the domains of behavior predicted from the curve. Source: Ref 17.73 More

Fig. 17 Activation polarization curve for the anodic reaction of iron and ferrous ions More

Fig. 18 Activation polarization curve for the cathodic reaction of hydrogen ions and hydrogen gas More

Fig. 20 Schematic diagrams of the three forms of activation polarization control More

Fig. 21 Onset of concentration polarization at more reducing potentials for a cathodic reduction reaction More

Fig. 22 Effect of ohmic polarization on the current in a corrosion cell More

Fig. 25 Anodic polarization curves for an active metal and an active-passive metal More

Fig. 26 Schematic polarization curve for a metal (e.g., stainless steel) that displays an active-passive transition. At relatively low potential values, within the active region, the behavior is linear, as it is for normal metals. With increasing potential, the current density suddenly More

Fig. 56 Potentiokinetic polarization curve and electrode potential values at which intergranular and transgranular SCC appears in a 10% sodium hydroxide (NaOH) solution at 288 °C (550 °F). (a) Alloy 600. (b) Alloy 800. (c) AISI type 304 stainless steel More

Fig. 13 Effects of alloying and polarization behavior. (a) The potentiostatic anodic polarization of pure iron and iron-chromium alloy in sulfuric acid. (b) Active-to-passive transitions due to the formation of surface oxide. This curve is typical of stainless steels, e.g., the curve More

Fig. 14 Evans diagram showing the comparison of potentiostatic anodic polarization of nickel alloys in H 2 SO 4 at ambient temperature. See text for details on the effects of alloying additions on corrosion behavior. More

Fig. 15 Anodic and cathodic polarization curves showing the effect of an anodic inhibitor More