Determination of the weld metal corrosion rate using electrochemical techniques
Određivanje brzine korozije metala šava u zavarenom spoju pomoću elektrohemijskih tehnika
Abstract
To determine corrosion rate of the base metal and weld metal were applied electrochemical techniques: linear polarization resistance, linear sweep voltammetry and electrochemical impedance spectroscopy. The samples were obtained by arc welding steel boiler plate using coated basic electrode. Factory electrode and electrodes, which are produced in the laboratory thinly and thick coated basic electrodes, were used for welding. It was found that the corrosion rate of the weld metal was greater than the corrosion rate of the base metal. The corrosion rate of weld metal obtained by thinly coated electrodes is less than the corrosion rate of weld metal obtained by thick coated basic and factory-coated electrodes. The corrosion rates, determined by different electrochemical techniques are in agreement.
Za određivanje brzine korozije osnovnog metala i metala šava u zavarenom spoju primenjene su elektrohemijske tehnike: linearna polarizaciona otpornost, voltametrija sa linearnom promenom potencijala i elektrohemijska impedansna spektroskopija. Uzorci za ispitivanje dobijeni su elektrolučnim zavarivanjem čeličnog kotlovskog lima, uz upotrebu obloženih bazičnih elektroda. Pri zavarivanju je korišćena fabrička elektroda i elektrode koje su proizvedene u laboratorijskim uslovima (tanko obložena i debelo obložena bazična elektroda). Utvrđeno je da je brzina korozije metala šava veća od brzine korozije osnovnog metala. Brzina korozije metala šava dobijenog pomoću tanko obložene elektrode je manja od brzine korozje metala šava dobijenog pomoću debelo obložene i fabričke elektrode. Vrednosti za brzinu korozije, određene različitim elektrohemijskim tehnikama, su u saglasnosti.
Keywords:
welded joint / corrosion / corrosion rate / electrochemical methods / zavareni spoj / korozija / brzina korozije / elektrohemijske metodeSource:
Zaštita materijala, 2015, 56, 3, 315-319Publisher:
- Belgrade, Serbia : Engineering Society for Corrosion
Funding / projects:
- Development of covering and core production technology based on local raw materials for manufacturing of special coated electrodes designed for steel arc welding (RS-MESTD-Technological Development (TD or TR)-34016)
- Investigation and Optimization of the Technological and Functional Performance of the Ventilation Mill in the Thermal Power Plant Kostolac B (RS-MESTD-Technological Development (TD or TR)-34028)
Collections
Institution/Community
IHTMTY - JOUR AU - Bobić, Biljana AU - Bajić, Nikola AU - Jegdić, Aleksandar AU - Stevanović, Maja AU - Jegdić, Bore PY - 2015 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1688 AB - To determine corrosion rate of the base metal and weld metal were applied electrochemical techniques: linear polarization resistance, linear sweep voltammetry and electrochemical impedance spectroscopy. The samples were obtained by arc welding steel boiler plate using coated basic electrode. Factory electrode and electrodes, which are produced in the laboratory thinly and thick coated basic electrodes, were used for welding. It was found that the corrosion rate of the weld metal was greater than the corrosion rate of the base metal. The corrosion rate of weld metal obtained by thinly coated electrodes is less than the corrosion rate of weld metal obtained by thick coated basic and factory-coated electrodes. The corrosion rates, determined by different electrochemical techniques are in agreement. AB - Za određivanje brzine korozije osnovnog metala i metala šava u zavarenom spoju primenjene su elektrohemijske tehnike: linearna polarizaciona otpornost, voltametrija sa linearnom promenom potencijala i elektrohemijska impedansna spektroskopija. Uzorci za ispitivanje dobijeni su elektrolučnim zavarivanjem čeličnog kotlovskog lima, uz upotrebu obloženih bazičnih elektroda. Pri zavarivanju je korišćena fabrička elektroda i elektrode koje su proizvedene u laboratorijskim uslovima (tanko obložena i debelo obložena bazična elektroda). Utvrđeno je da je brzina korozije metala šava veća od brzine korozije osnovnog metala. Brzina korozije metala šava dobijenog pomoću tanko obložene elektrode je manja od brzine korozje metala šava dobijenog pomoću debelo obložene i fabričke elektrode. Vrednosti za brzinu korozije, određene različitim elektrohemijskim tehnikama, su u saglasnosti. PB - Belgrade, Serbia : Engineering Society for Corrosion T2 - Zaštita materijala T1 - Determination of the weld metal corrosion rate using electrochemical techniques T1 - Određivanje brzine korozije metala šava u zavarenom spoju pomoću elektrohemijskih tehnika VL - 56 IS - 3 SP - 315 EP - 319 DO - 10.5937/ZasMat1503315B ER -
@article{ author = "Bobić, Biljana and Bajić, Nikola and Jegdić, Aleksandar and Stevanović, Maja and Jegdić, Bore", year = "2015", abstract = "To determine corrosion rate of the base metal and weld metal were applied electrochemical techniques: linear polarization resistance, linear sweep voltammetry and electrochemical impedance spectroscopy. The samples were obtained by arc welding steel boiler plate using coated basic electrode. Factory electrode and electrodes, which are produced in the laboratory thinly and thick coated basic electrodes, were used for welding. It was found that the corrosion rate of the weld metal was greater than the corrosion rate of the base metal. The corrosion rate of weld metal obtained by thinly coated electrodes is less than the corrosion rate of weld metal obtained by thick coated basic and factory-coated electrodes. The corrosion rates, determined by different electrochemical techniques are in agreement., Za određivanje brzine korozije osnovnog metala i metala šava u zavarenom spoju primenjene su elektrohemijske tehnike: linearna polarizaciona otpornost, voltametrija sa linearnom promenom potencijala i elektrohemijska impedansna spektroskopija. Uzorci za ispitivanje dobijeni su elektrolučnim zavarivanjem čeličnog kotlovskog lima, uz upotrebu obloženih bazičnih elektroda. Pri zavarivanju je korišćena fabrička elektroda i elektrode koje su proizvedene u laboratorijskim uslovima (tanko obložena i debelo obložena bazična elektroda). Utvrđeno je da je brzina korozije metala šava veća od brzine korozije osnovnog metala. Brzina korozije metala šava dobijenog pomoću tanko obložene elektrode je manja od brzine korozje metala šava dobijenog pomoću debelo obložene i fabričke elektrode. Vrednosti za brzinu korozije, određene različitim elektrohemijskim tehnikama, su u saglasnosti.", publisher = "Belgrade, Serbia : Engineering Society for Corrosion", journal = "Zaštita materijala", title = "Determination of the weld metal corrosion rate using electrochemical techniques, Određivanje brzine korozije metala šava u zavarenom spoju pomoću elektrohemijskih tehnika", volume = "56", number = "3", pages = "315-319", doi = "10.5937/ZasMat1503315B" }
Bobić, B., Bajić, N., Jegdić, A., Stevanović, M.,& Jegdić, B.. (2015). Determination of the weld metal corrosion rate using electrochemical techniques. in Zaštita materijala Belgrade, Serbia : Engineering Society for Corrosion., 56(3), 315-319. https://doi.org/10.5937/ZasMat1503315B
Bobić B, Bajić N, Jegdić A, Stevanović M, Jegdić B. Determination of the weld metal corrosion rate using electrochemical techniques. in Zaštita materijala. 2015;56(3):315-319. doi:10.5937/ZasMat1503315B .
Bobić, Biljana, Bajić, Nikola, Jegdić, Aleksandar, Stevanović, Maja, Jegdić, Bore, "Determination of the weld metal corrosion rate using electrochemical techniques" in Zaštita materijala, 56, no. 3 (2015):315-319, https://doi.org/10.5937/ZasMat1503315B . .