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Showing 1 to 6 of 6 for “"Pourbaix diagrams"”.
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Pourbaix diagrams at elevated temperatures: a study of Zn and Sn
… 250-310 oC coolant in CANDU reactors. The Pourbaix (EH-pH) diagram is a plot of electrochemical potential versus pH, which shows the domains of various metal species and by inference, corrosion susceptibility. Elevated temperature data for tin +II and tin +IV species were obtained using …
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Developing an elevated temperature Pourbaix diagram for zirconium and multi-element Pourbaix diagram of Zircaloy-4
… and the development of elevated temperature Pourbaix (E-pH) diagrams for zirconium and Zircaloy-4. These Pourbaix diagrams of zirconium and multi-element diagram (Sn, Zr, Cr) of Zircaloy-4 were developed at 373.15K (100 °C). Solubility measurements were made using a batch-style pressure …
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Thermodynamics and Kinetics of Carbon Dioxide Corrosion of Mild Steel at Elevated Temperatures
… due to FeCO<sub>3</sub> precipitation.</p><p>Pourbaix diagrams for the Fe-CO<sub>2</sub>-H<sub>2</sub>O systems were constructed using thermodynamic theory and data, subsequently validated with observed CO<sub>2</sub> corrosion phenomena. In the range of 80-150¿¿C, FeCO<sub>3</sub> and …
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The Effect Of Free Chlorine And Chloramines On Lead Release In A Distribution System
… chlorine relative to chloramines. Development of Pourbaix diagrams revealed the PbO2 was the controlling solid phase at the higher ORP in the presence of free chlorine and Pb3(CO3)2(OH)2(s) (hydrocerussite) was the controlling solid phase in the presence of chloramines at the lower ORP, which …
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Feasibility of very deep borehole disposal of US nuclear defense wastes
… form dissolution analyses were performed using Pourbaix diagrams. Finally, the cost and time for drilling the borehole and emplacing the defense waste were calculated. The temperature change in the granite is 15.1°C for the reference canister and 45.7°C for the DOE Canister. The resulting …
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Modeling of mechanisms affecting the growth and breakdown of iron sulfide films
… of the model in constructing kinetic stability diagrams, which extend the information contained in phase and Pourbaix diagrams by accounting for the relative rates for formation and dissolution of different iron sulfide phases. We also demonstrate the calculation of degradation maps, that help …