Kinetics of the chloride-induced oxidation ofiron at 300°C

Theorems of Electrochemical Mass Transport in Dilute Solutions of Mixtures of Electrolytes, Including Weak Electrolytes and Hydrolysis Reactions

“…Figure 8 shows that on such basis, the modeling fits very well the experimental results of Scheiman's capsules, 32 with R1 o = 3000 and R1͑L͒ = exp͑40,000L͒. Being a novel contribution, Eq.…”

“…In closed systems such as bulging capsules 30 and other experimental capsules, 31,32 the corrosion process is greatly affected by the accumulation of molecular hydrogen and its effusivity through the capsule wall. In such closed systems, the corrosion rate in a new capsule can decrease by two orders of magnitude in the first hour after heating the system to the test temperature, as shown in Fig.…”

“…Figure 9 compares the corrosion rates of carbon steel as a function of the pH of the corrosive waters at high temperature d ͑and pressure͒ with time as a parameter, calculated from the model including and ignoring the ion-exchange membrane properties of the corrosion layer. Figure 10 illustrates the corrosion rates of carbon steel based on data from experiments on capsules 32 and on coupons in static autoclaves 25,37 compiled by Mann 26,38 as a function of pH.…”