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Title:ŠTUDIJA PROTIKOROZIJSKE ZAŠČITE NERJAVNEGA JEKLA "1.4057" z različnimi inhibitorji
Authors:ID Vogel, Ina (Author)
ID Goršek, Andreja (Mentor) More about this mentor... New window
ID Pečar, Darja (Comentor)
Files:.pdf VS_Vogel_Ina_2009.pdf (1,40 MB)
MD5: B2C0275DE0F9FE747EA71F2D570568FD
PID: 20.500.12556/dkum/78d60621-1365-48b7-81e3-ca0ca6739c8e
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Preučevali smo korozijsko obnašanje nerjavnega jekla W. Nr. 1.4057 v raztopini H2SO4, s koncentracijo, c = 0.075 mol/L, ob dodatkih inhibitorjev različnih koncentracij. Uporabili smo štiri različne inhibitorje (Na3PO4, NaNO2, Na2O7Si3, Na2B4O7) in kombinacijo dveh (NaNO2/Na2B4O7). Poskuse smo opravili z gravimetrično metodo v skladu z ASTM G31 standardom. Določali smo izgubo mase, iz katere smo izračunali hitrost korozije in učinkovitost inhibitorjev. Opravili smo tudi elektrokemijske meritve, ob dodatku inhibitorja NaNO2 različnih koncentracij. Z analizo rezultatov smo ugotovili, da se z večanjem ustrezne koncentracije inhibitorja, zmanjša korozijski proces izbranega jekla.
Keywords:korozija, nerjavno jeklo, inhibitorji, gravimetrična metoda, hitrost korozije, učinkovitost inhibitorjev.
Place of publishing:Maribor
Publisher:[I. Vogel]
Year of publishing:2009
PID:20.500.12556/DKUM-11428 New window
UDC:620.193.4(043.2)
COBISS.SI-ID:13908502 New window
NUK URN:URN:SI:UM:DK:NQIYZUZU
Publication date in DKUM:22.12.2009
Views:3516
Downloads:489
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:STUDY OF CORROSION CONTROL OF STAINLESS STEEL "1.4057" with different inhibitors
Abstract:We have studied corrosion behaviour of stainless steel W. Nr. 14057 in a solution of H2SO4, with a concentration, c = 0,075 mol/L, with additions of various concentrations of inhibitors. We used four different inhibitors (Na3PO4, NaNO2, Na2O7Si3, Na2B4O7) and a combination of two ones (NaNO2/Na2B4O7). We performed experiments by the gravimetric method in accordance with ASTM G31 standards. We determine the loss of mass from which we calculate rate of corrosion and effectiveness of corrosion inhibitors. We also perform electrochemical measurements, using inhibitor NaNO2 with different concentrations. By analyzing the results, we found out that with increasing the adequate concentration of inhibitors, the corrosion process of the selected steel is reduced.
Keywords:corrosion, stainless steel, inhibitors, gravimetric method, rate of corrosion, effectiveness of inhibitors.


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