Pitting corrosion testing of stainless steel AISI 304 in chloride solutions
Ispitivanje piting korozije nerđajućeg čelika AISI 304 u rastvorima hlorida
Abstract
Stainless steels and their welded joints are often susceptible to pitting corrosion in solutions containing chloride ions. Testing of pitting corrosion of stainless steels is performed using chemical and electrochemical methods. In this work pitting corrosion of the stainless steel AISI 304 was tested in chloride solutions, without the presence and in the presence of sulphate or nitrate ions. The tests were performed in order to determine the efficiency of these ions to prevent pitting corrosion, as well as to present the capabilities of the methods applied. Electrochemical methods were used to determine the value of pitting potential (Epit) and the critical pitting temperature (Tpit). The values of these parameters represent a measure of the resistance of stainless steels and their welded joints to pitting corrosion.
Nerđajući čelici i njihovi zavareni spojevi često podležu piting koroziji u rastvorima koji sadrže hloridne jone. Ispitivanje piting korozije nerđajućih čelika se vrši primenom hemijskih i elektrohemijskih metoda. U ovom radu vršeno je ispitivanje piting korozije nerđajućeg čelika AISI 304 u rastvoru hlorida, bez prisustva i u prisustvu sulfatnih, odnosno nitratnih jona. Ispitivanja su izvedena u cilju određivanje efikasnosti navedenih jona u sprečavanju piting korozije, kao i prezentacije mogućnosti primenjenih metoda. Korišćene su elektrohemijske metode za određivanje piting potencijala (Epit) i određivanje kritične temperature pitinga (Tpit). Vrednosti navedenih parametara predstavljaju merilo otpornosti nerđajućih čelika i njihovih zavarenih spojeva prema piting koroziji.
Keywords:
stainless steels / welded joint / pitting corrosion / pitting potential / critical pitting temperature / nerđajući čelici / zavareni spoj / piting korozija / piting potencijal / kritična temperatura pitingaSource:
Zavarivanje i zavarene konstrukcije, 2015, 60, 3, 101-108Publisher:
- DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
Funding / projects:
- Investigation and Optimization of the Technological and Functional Performance of the Ventilation Mill in the Thermal Power Plant Kostolac B (RS-34028)
- Development of covering and core production technology based on local raw materials for manufacturing of special coated electrodes designed for steel arc welding (RS-34016)
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Institution/Community
IHTMTY - JOUR AU - Jegdić, Bore AU - Bobić, Biljana PY - 2015 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1699 AB - Stainless steels and their welded joints are often susceptible to pitting corrosion in solutions containing chloride ions. Testing of pitting corrosion of stainless steels is performed using chemical and electrochemical methods. In this work pitting corrosion of the stainless steel AISI 304 was tested in chloride solutions, without the presence and in the presence of sulphate or nitrate ions. The tests were performed in order to determine the efficiency of these ions to prevent pitting corrosion, as well as to present the capabilities of the methods applied. Electrochemical methods were used to determine the value of pitting potential (Epit) and the critical pitting temperature (Tpit). The values of these parameters represent a measure of the resistance of stainless steels and their welded joints to pitting corrosion. AB - Nerđajući čelici i njihovi zavareni spojevi često podležu piting koroziji u rastvorima koji sadrže hloridne jone. Ispitivanje piting korozije nerđajućih čelika se vrši primenom hemijskih i elektrohemijskih metoda. U ovom radu vršeno je ispitivanje piting korozije nerđajućeg čelika AISI 304 u rastvoru hlorida, bez prisustva i u prisustvu sulfatnih, odnosno nitratnih jona. Ispitivanja su izvedena u cilju određivanje efikasnosti navedenih jona u sprečavanju piting korozije, kao i prezentacije mogućnosti primenjenih metoda. Korišćene su elektrohemijske metode za određivanje piting potencijala (Epit) i određivanje kritične temperature pitinga (Tpit). Vrednosti navedenih parametara predstavljaju merilo otpornosti nerđajućih čelika i njihovih zavarenih spojeva prema piting koroziji. PB - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd T2 - Zavarivanje i zavarene konstrukcije T1 - Pitting corrosion testing of stainless steel AISI 304 in chloride solutions T1 - Ispitivanje piting korozije nerđajućeg čelika AISI 304 u rastvorima hlorida VL - 60 IS - 3 SP - 101 EP - 108 DO - 10.5937/zzk1503101J ER -
@article{ author = "Jegdić, Bore and Bobić, Biljana", year = "2015", abstract = "Stainless steels and their welded joints are often susceptible to pitting corrosion in solutions containing chloride ions. Testing of pitting corrosion of stainless steels is performed using chemical and electrochemical methods. In this work pitting corrosion of the stainless steel AISI 304 was tested in chloride solutions, without the presence and in the presence of sulphate or nitrate ions. The tests were performed in order to determine the efficiency of these ions to prevent pitting corrosion, as well as to present the capabilities of the methods applied. Electrochemical methods were used to determine the value of pitting potential (Epit) and the critical pitting temperature (Tpit). The values of these parameters represent a measure of the resistance of stainless steels and their welded joints to pitting corrosion., Nerđajući čelici i njihovi zavareni spojevi često podležu piting koroziji u rastvorima koji sadrže hloridne jone. Ispitivanje piting korozije nerđajućih čelika se vrši primenom hemijskih i elektrohemijskih metoda. U ovom radu vršeno je ispitivanje piting korozije nerđajućeg čelika AISI 304 u rastvoru hlorida, bez prisustva i u prisustvu sulfatnih, odnosno nitratnih jona. Ispitivanja su izvedena u cilju određivanje efikasnosti navedenih jona u sprečavanju piting korozije, kao i prezentacije mogućnosti primenjenih metoda. Korišćene su elektrohemijske metode za određivanje piting potencijala (Epit) i određivanje kritične temperature pitinga (Tpit). Vrednosti navedenih parametara predstavljaju merilo otpornosti nerđajućih čelika i njihovih zavarenih spojeva prema piting koroziji.", publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd", journal = "Zavarivanje i zavarene konstrukcije", title = "Pitting corrosion testing of stainless steel AISI 304 in chloride solutions, Ispitivanje piting korozije nerđajućeg čelika AISI 304 u rastvorima hlorida", volume = "60", number = "3", pages = "101-108", doi = "10.5937/zzk1503101J" }
Jegdić, B.,& Bobić, B.. (2015). Pitting corrosion testing of stainless steel AISI 304 in chloride solutions. in Zavarivanje i zavarene konstrukcije DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd., 60(3), 101-108. https://doi.org/10.5937/zzk1503101J
Jegdić B, Bobić B. Pitting corrosion testing of stainless steel AISI 304 in chloride solutions. in Zavarivanje i zavarene konstrukcije. 2015;60(3):101-108. doi:10.5937/zzk1503101J .
Jegdić, Bore, Bobić, Biljana, "Pitting corrosion testing of stainless steel AISI 304 in chloride solutions" in Zavarivanje i zavarene konstrukcije, 60, no. 3 (2015):101-108, https://doi.org/10.5937/zzk1503101J . .