Radiometric method for the study of the corrosion reactions of steel samples in strongly acidic media
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Alexandru Cecal
Abstract
This study investigates the corrosion of OL–37, OL–60 and 316L type steel samples immersed in acidic media (HCl, HClO4, H2SO4 and HNO3), based on a new radioactive tracer method. This procedure, used for the determination of the global rate constant of metal corrosion reaction, is based on the screening of β--rays emitted by 204Tl+ radionuclides, present in the aggressive medium of the iron ions which are formed during the process. The global rate constants of corrosion reaction decrease, for a certain metallic sample, in the series HCl > HClO4 > H2SO4 > HNO3, and increase with the concentration of the used acid. For a given aggressive solution, the corrosion process decreased with the decreasing of the carbon amount in each steel sample.
© 2005 Oldenbourg Wissenschaftsverlag GmbH
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Articles in the same Issue
- Transmutation experiments on 129I, 139La and 237Np using the Nuclotron accelerator
- Electrochemical redox reactions of uranium(VI) complexes with multidentate ligands in dimethyl sulfoxide
- Solubility of ThO2·xH2O(am) in carbonate solution and the formation of ternary Th(IV) hydroxide-carbonate complexes
- Eu(III), Sm(III), Np(V), Pu(V), and Pu(IV) sorption to calcite
- Thermochemistry of selected trivalent lanthanide and americium compounds: orthorhombic and hexagonal hydroxycarbonates
- Simple and safe production of yttrium-90 from a new type of 90Sr/90Y generator
- Radiometric method for the study of the corrosion reactions of steel samples in strongly acidic media
- Comparison of techniques for measuring ion exchange selectivities in zeolites
