Investigation of intergranular corrosion welded joint of austenitic stainless steel by electrochemical methods
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Sensitization degree of the austenitic stainless steel welded joints was investigated byelectrochemical methods: the double loop electrochemical potentiokinetic reactivation (DL EPR) in H2SO4 +KSCN solution and by of the corrosion potentials measurement of the steel in the solution drop of HNO3 +FeCl3 6H2O + HCl. The welded joints, by an X-ray radiographic method on possible presence of the welddefects, were tested. Grain size of the base metal and the welded joints, by applying an optical microscopywere determined. The existence of compatibility between the results for different electrochemical methods isshown. Heat affected zone (HAZ) of the austenitic stainless steel welded joints has shown significant degreeof sensitization. The corrosion potentials measurement method is simple, nondestructive method, that givesqualitative informations about degree of the sensitizations of the stainless steel. The double loopelectrochemical potentiokinetic method gives quantitative evidence about s...usceptibility of the stainless steelto intergranular corrosion. This method can be applied with some adaptation in field environments.
Keywords:
stainless steels / welded joints / intergranular corrosion / test methods / electrochemistrySource:
Proceedings of the 9th International Conference “Structural integrity of welded structures”, 03-04.11.2011, Timisoara, Romania, 2011, 1-7Publisher:
- Timisoara, Romania : SUDURA publising house
Funding / projects:
- 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)
Institution/Community
IHTMTY - CONF AU - Alil, Ana AU - Jegdić, Bore V. AU - Milutinović, Zlatan R. AU - Katavić, Boris T. PY - 2011 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/7501 AB - Sensitization degree of the austenitic stainless steel welded joints was investigated byelectrochemical methods: the double loop electrochemical potentiokinetic reactivation (DL EPR) in H2SO4 +KSCN solution and by of the corrosion potentials measurement of the steel in the solution drop of HNO3 +FeCl3 6H2O + HCl. The welded joints, by an X-ray radiographic method on possible presence of the welddefects, were tested. Grain size of the base metal and the welded joints, by applying an optical microscopywere determined. The existence of compatibility between the results for different electrochemical methods isshown. Heat affected zone (HAZ) of the austenitic stainless steel welded joints has shown significant degreeof sensitization. The corrosion potentials measurement method is simple, nondestructive method, that givesqualitative informations about degree of the sensitizations of the stainless steel. The double loopelectrochemical potentiokinetic method gives quantitative evidence about susceptibility of the stainless steelto intergranular corrosion. This method can be applied with some adaptation in field environments. PB - Timisoara, Romania : SUDURA publising house C3 - Proceedings of the 9th International Conference “Structural integrity of welded structures”, 03-04.11.2011, Timisoara, Romania T1 - Investigation of intergranular corrosion welded joint of austenitic stainless steel by electrochemical methods SP - 1 EP - 7 UR - https://hdl.handle.net/21.15107/rcub_cer_7501 ER -
@conference{ author = "Alil, Ana and Jegdić, Bore V. and Milutinović, Zlatan R. and Katavić, Boris T.", year = "2011", abstract = "Sensitization degree of the austenitic stainless steel welded joints was investigated byelectrochemical methods: the double loop electrochemical potentiokinetic reactivation (DL EPR) in H2SO4 +KSCN solution and by of the corrosion potentials measurement of the steel in the solution drop of HNO3 +FeCl3 6H2O + HCl. The welded joints, by an X-ray radiographic method on possible presence of the welddefects, were tested. Grain size of the base metal and the welded joints, by applying an optical microscopywere determined. The existence of compatibility between the results for different electrochemical methods isshown. Heat affected zone (HAZ) of the austenitic stainless steel welded joints has shown significant degreeof sensitization. The corrosion potentials measurement method is simple, nondestructive method, that givesqualitative informations about degree of the sensitizations of the stainless steel. The double loopelectrochemical potentiokinetic method gives quantitative evidence about susceptibility of the stainless steelto intergranular corrosion. This method can be applied with some adaptation in field environments.", publisher = "Timisoara, Romania : SUDURA publising house", journal = "Proceedings of the 9th International Conference “Structural integrity of welded structures”, 03-04.11.2011, Timisoara, Romania", title = "Investigation of intergranular corrosion welded joint of austenitic stainless steel by electrochemical methods", pages = "1-7", url = "https://hdl.handle.net/21.15107/rcub_cer_7501" }
Alil, A., Jegdić, B. V., Milutinović, Z. R.,& Katavić, B. T.. (2011). Investigation of intergranular corrosion welded joint of austenitic stainless steel by electrochemical methods. in Proceedings of the 9th International Conference “Structural integrity of welded structures”, 03-04.11.2011, Timisoara, Romania Timisoara, Romania : SUDURA publising house., 1-7. https://hdl.handle.net/21.15107/rcub_cer_7501
Alil A, Jegdić BV, Milutinović ZR, Katavić BT. Investigation of intergranular corrosion welded joint of austenitic stainless steel by electrochemical methods. in Proceedings of the 9th International Conference “Structural integrity of welded structures”, 03-04.11.2011, Timisoara, Romania. 2011;:1-7. https://hdl.handle.net/21.15107/rcub_cer_7501 .
Alil, Ana, Jegdić, Bore V., Milutinović, Zlatan R., Katavić, Boris T., "Investigation of intergranular corrosion welded joint of austenitic stainless steel by electrochemical methods" in Proceedings of the 9th International Conference “Structural integrity of welded structures”, 03-04.11.2011, Timisoara, Romania (2011):1-7, https://hdl.handle.net/21.15107/rcub_cer_7501 .