Central Technological Library of the University of Ljubljana (CTK)
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Analiza korozijskih procesov na kemično odpornem jeklu na osnovi izmerjenega tokovnega šuma : doktorska disertacijaPetek, AljanaIzmerili smo tokovni šum pri koroziji nerjavnega jekla AISI 420 v raztopini ▫$H_2SO_4$▫ ob različnih polarizacijah in ga analizirali s pomočjo Fourierove transformacije. Rezultat je spektralna ... gostota moči šuma, PSD. Nivo in naklon PSD se spreminja v odvisnosti od polarizacije ▫$\eta$▫. Te PSD smo primerjali s spektri šuma, ki smo ga simulirali po metodi Monte Carlo. Za simulacijo smo potrebovali dve verjetnostni porazdelitveni funkciji, ki smo ju dobili z analizo izmerjenega šuma. Simulirani PSD je moč opisati z dvema parametroma; prvega (▫$\tau$▫) smo dobili iz porazdelitve časovnih intervalov, v katerih je tok tekel v katodno ali anodno smer, drugega, ▫$\sigma$▫, iz sprememb velikosti toka med dvema točkama. Nadalje smo razvili elektrokemičen model tokovnega šuma pri splošni koroziji. Opis stohastičnega dogajanja na površini kovina-elektrolit je osnovan na predpostavki, da se elementarni izvori nihanj pripisujejo toku elektronov, ki prehajajo iz kovine na elektron-akceptorski ion v raztopini. Število uspešnih elektronskih prehodov sledi Gaussovi porazdelitvi, iz katere smo določili gostoto korozijskega toka in koeficienta prenosa.Type of material - dissertationPublication and manufacture - Maribor : [A. Petek], 1997Language - slovenianCOBISS.SI-ID - 66959872
Author
Petek, Aljana
Other authors
Doleček, Valter |
Đonlagić, Dali |
Vlachy, Vojko
Topics
elektrokemija |
nerjavna jekla |
korozija |
žveplova kislina |
korozijski procesi |
gostota korozijskega toka |
simulacije |
metode Monte Carlo |
doktorske disertacije
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Central Technological Library of the University of Ljubljana |
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0000059287/0000000066 Skladišče IN: 399700140 59287/66 Skladišče IN: 399700140 |
available - outside loan, loan period: 14 days
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Petek, Aljana | 08264 |
Doleček, Valter | 00869 |
Đonlagić, Dali | 03013 |
Vlachy, Vojko | 02563 |
Source: Personal bibliographies
and: SICRIS
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