Merjenje tokovnega šuma pri korozijskih procesih : proučevanje pasivne plasti nerjavnega jekla PROKRON 3 na osnovi merjenja elektrokemijskega tokovnega šuma : magistrsko delo
Slemnik, Mojca
Proučevali smo analizno metodo fluktuacij toka pasiviranja na različno toplotno obdelanih jeklih PROKRON 3, ki so bila predhodno pasivirana 20 ur v 0,1 M H2SO4 pri konstantnih napetostih: 0,20 V, ...0,40 V, 0,60 V/NKE. Na osciloskopu smo snemali signale izmenične komponente toka, jih preslikali v frekvenčni prostor s FFT (fast fourier transform) metodo in izračunali vrednosti PSD (power spectral density), ki smo jih podali v odvisnosti od napetosti in frekvence. PSD krivulje imajo značilno obliko, ki se spreminja glede na toplotno obdelavo, vrednost napetosti pasiviranja in kvaliteto nastale pasivne plasti: stabilnost in hitrost obnavljanja. Površine pasivnih plasti smo fotografirali s SEM (scanning electronic microscope) metodo.
Type of material - master's thesis
; adult, serious
Publication and manufacture - Ljubljana : [M. Slemnik], 1994
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