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We study the corrosion-electrochemical behavior of 15Kh2NMFA steel in borate-buffered reactor water within the temperature range 22–300°C and establish the relationship between the temperature dependences of the corrosion-fatigue crack growth rates and the electrochemical behavior of steel. The influence of the galvanic couple formed by the refreshed and passivated surfaces on the acceleration of growth of corrosion-fatigue cracks is revealed. It is shown that this type of steel is susceptible to passivation in the entire temperature range. [ABSTRACT FROM AUTHOR]

We study the influence of the temperature and composition of the feed water of ammonia-hydrazine control on the corrosion-electrochemical behavior of 08Kh18N10T stainless steel. It is shown that, as temperature increases from 25 to 300°С, the corrosion currents increase by more than an order of magnitude for hydrazine concentrations of 0-2.0 mg/kg, by 1.5-2 orders of magnitude depending on the concentration of chlorides, and by two orders of magnitude within the рН range 6.9-9.0. We plot the dependences of the susceptibility of steel to pitting and repassivation on temperature, on the concentrations of hydrazine and chloride ions, and on the рН value. It is shown that, for a content of chloride ions of 2.0 mg/kg and рН 6.9, the analyzed steel is most susceptible to the initiation of pits within the range 25-300°С. [ABSTRACT FROM AUTHOR]

A short description of experiment TGV (double beta decay of48Ca) is given. The measurement started in the Modane underground laboratory in August 1996. The first result of T ≥ 4.6 × 1020 years [90% CL] after 2545 hours is presented. [ABSTRACT FROM AUTHOR]