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Analiza elektrokemijskega šuma povzročenega z napetostno-korozijskim pokanjem jeklene žiceBajt Leban, Mirjam ...V tem delu smo analizirali elektrokemijski šum, ki smo ga izmerili med korozijskimi procesi pred in po pretrgu. Napetostni in tokovni šum (skupaj sestavljata elektrokemijski šum) sta bila merjena med ... tremi elektrodami iz enakega mateiala. Skupna elektroda, ki je bila z ostalima dvema povezana v tokovni in napetostni vir, je bila izpostavljena mehanski obremenitvi. Med potekom preskusa smo površino elektrod spremljali z optičnim mikroskopom v kombinaciji z računalniškim vizualizacijskim sistemom, kar nam je omogočilo, da smo primerjali fluktuacije elektrokemijskega šuma s posameznimi korozijskimi procesi. Za karakterizacijo izmerjenih signalov v različnih fazah korozijskega procesa smo uporabili različne matematične metode v frekvenčnem prostoru (PSD) in v faznem prostoru (fraktalne dimenzije, maksimalni Lyapunov eksponent). Povzamemo lahko, da z meritvami in analizo elektrokemijskega šuma lahko ločimo med izrazito lokalno in splošno korozijo. Dosegli smo tudi določen napredek pri detekciji napetostne korozije. Še vedno pa ne moremo natančno določiti prehoda med obema tipoma (jamičaste in napetostne) lokalne korozije, niti ne slediti napredovanju razpok.Source: Zbornik referatov s posvetovanja (Str. 598-602)Type of material - conference contributionPublish date - 1997Language - slovenianCOBISS.SI-ID - 93799
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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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Bajt Leban, Mirjam | 16394 |
Legat, Andraž | 08281 |
Doleček, Valter | 00869 |
Kuhar, Viljem | 17353 |
Source: Personal bibliographies
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