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- Article name
- PRECISION CHARACTERISTICS RESEARCH OF VARIOUS ESTIMATION PARAMETERS METHODS OF PITTINGS GROWTH CORROSION MODELS
- Authors
- Ryzhakov V. V., , rvv@pgta.ru, The Penza State Technological Academy, Penza, Russia
Ryzhakov M. V., , mryzhakov@applmech.mipt.ru, The Moscow Institute of Physics and Technology (State University), Moscow region, Dolgoprudny, Russia
Rudjuk M. J. , , , Penza State Technological Academy, Penza, Russia
- Keywords
- pitting / a method traditional / a method coulometric / model of growth / accuracy
- Year
- 2010 Issue 4 Pages 68 - 75
- Code EDN
- Code DOI
- Abstract
- The accuracy analysis of two methods of a parameters estimation of the pitting growth power law is carry out: on the basis of depth direct measurement and by means of processing dependences of a potentiostating current from a time. For these purposes authors define absolute and relative lapses of parameters estimation. Specificity of a problem has demanded use of the mathematical apparatus of fuzzy sets. The analysis has shown, that the method on the basis of coulometric technique has essentially smaller lapse in comparison with traditional, simultaneously allowing to trace dynamics of growth average pitting and to reduce necessary amount of specimens.
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