... showed that, in high temperature, high purity water, TiO₂ coating is a candidate oxide as an anti fouling layer under BWR water chemistry condition. BWR oxide fouling crud zeta potential high temperature water 304 SS jet pump INTRODUCTION During the operation of boiling water reactors...

... with a Ta₂O₅ coating improves the corrosion resistance of hard-friction coated aluminum steam line plug grips. BWR high temperature water 304 SS CVD YSZ ECP SCC INTRODUCTION The coolant in boiling water reactor (BWR) recirculation lines is high purity, neutral pH water containing radiolytically...

... and corrosion of the metal. The corrosion current for 304 SS slowly decreases over months of exposure in a reactor water as the oxide thickness on the surface increases with time. In the BWR primary coolant, O₂, H₂, and H₂O₂ are the most stable radiolytic species...

... that the presence of noble metals on the oxide surface dramatically improves the hydrogen oxidation kinetics and thus enhances the catalytic recombination efficiency of H2 to O₂ to form H₂O. The enhancement in the catalytic nature on 304 SS surface doped with noble metals results...

... on the electrochemical kinetic measurements in 288°C water containing H₂O₂ or O₂+H₂O₂ mixture are needed to improve the current ECP model. BWR ECP 304 SS high temperature water oxygen hydrogen hydrogen peroxide mixed potential INTRODUCTION Intergranular...

... recombination efficiency of H₂ to O₂ to form H₂O. The enhancement in the catalytic nature on 304 SS surface doped with noble metals results in a thermodynamically lowest electrochemical corrosion potential (ECP) value (<-500 mV_she) when a stoichiometric or higher...

... corrosion cracking 304 SS welds underwater PTA welding INTRODUCTION Underwater welding was initially investigated as a means to clad boiling water reactor (BWR) components with noble metal to impart stress corrosion cracking (SCC) resistance without the expense of draining the water from the reactor...

.... Figure 1 shows the anodic and cathodic polarization behavior of 304 SS at 288°C in high purity water containing less than 2 ppb O₂ and no H₂. Tafel slopes of 98 and 125 mV/decade of current are estimated for the reduction of H₂O to H₂ (2H₂O...

... flow exposure caused some loss of noble metals and thereby shifted the corrosion potential in the positive direction. corrosion potential catalytic property 304 SS noble metals high temperature water boiling water reactor INTRODUCTION The coolant in boiling water reactor (BWR) recirculation lines...

...Organic Acid Influence on SCC Susceptibility The effect of several carboxylic acids (acetic, formic, lactic, oxalic, propionic, butyric, and valeric) at a concentration of 1.0 ppm on the SCC susceptibility of sensitized AISI 304 SS in oxygenated water is shown in Table 3 . In contrast...