Influence of welding current intensity on susceptibility to intergranular corrosion in welded joints of stainless steel
Uticaj jačine struje zavarivanja na sklonost prema interkristalnoj koroziji zavarenog spoja nerdajućeg čelika
Апстракт
Susceptibility to intergranular corrosion in welded joints of austenitic stainless steel X5Cr-Ni18-10 was tested. The welding was performed with different intensity of welding current (110 A, 130 A and 150 A). The tests were performed using electrochemical potentiokinetic reactivation method with double loop (DL EPR method) on the base metal and in the heat affected zone. The results obtained by the DL EPR method show that the heat affected zone formed by welding with 150 A has the highest susceptibility to intergranular corrosion. The susceptibility to intergranular corrosion is considerably lower when applying smaller welding current. The base metal is resistant to intergranular corrosion. The indicator of susceptibility to intergranular corrosion (Qr/Qp)GBA is ~ 6 times higher for the heat affected zone (at 150 A welding current intensity) than for the base metal. Obtained testing results show that the welding current intensity greatly influences the susceptibility to intergranular ...corrosion in welded joints of stainless steel X5Cr-Ni18-10.
Ispitana je sklonost prema interkristalnoj koroziji zavarenog spoja austenitnog nerđajućeg čelika X5Cr-Ni18-10. Zavareni spoj je formiran pri različitim jačinama struje zavarivanja (110 A, 130 A i 150 A). Ispitivanja su vršena metodom elektrohemijske potenciokinetičke reaktivacije sa dvostrukom petljom (DL EPR metoda), na osnovnom metalu i u zoni uticaja toplote (ZUT). Osnovni metal je otporan prema interkristalnoj koroziji. Zona uticaja toplote formirana pri zavarivanju strujom jačine 150 A pokazuje najveću sklonost prema interkristalnoj koroziji. Sklonost prema interkristalnoj koroziji je znatno niža pri zavarivanju manjim jačinama struje. Pokazatelj sklonosti prema interkristalnoj koroziji (Qr/Qp)GBA je ~ 6 puta veći za zonu uticaja toplote (pri jačini struje zavarivanja od 150 A) nego za osnovni metal. Na osnovu prikazanih rezultata može se zaključiti da jačina struje zavarivanja u velikoj meri utiče na sklonost zavarenog spoja nerđajućeg čelika X5CrNi18-10 prema interkristalnoj ko...roziji. .
Кључне речи:
stainless steels / welded joints / intergranular corrosion / test methods / nerđajući čelici / zavareni spoj / interkristalna korozija / metode ispitivanjaИзвор:
Zavarivanje i zavarene konstrukcije, 2017, 62, 4, 149-154Издавач:
- DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
Финансирање / пројекти:
- Истраживање и оптимизација технолошких и функционалних перформанси вентилационог млина термоелектране Костолац Б (RS-MESTD-Technological Development (TD or TR)-34028)
- Развој технологије израде облоге и језгра на бази домаћих сировина за производњу специјалних обложених електрода намењених за електролучно заваривање челика (RS-MESTD-Technological Development (TD or TR)-34016)
Институција/група
IHTMTY - JOUR AU - Jegdić, Bore AU - Bobić, Biljana AU - Alić, Behar PY - 2017 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2081 AB - Susceptibility to intergranular corrosion in welded joints of austenitic stainless steel X5Cr-Ni18-10 was tested. The welding was performed with different intensity of welding current (110 A, 130 A and 150 A). The tests were performed using electrochemical potentiokinetic reactivation method with double loop (DL EPR method) on the base metal and in the heat affected zone. The results obtained by the DL EPR method show that the heat affected zone formed by welding with 150 A has the highest susceptibility to intergranular corrosion. The susceptibility to intergranular corrosion is considerably lower when applying smaller welding current. The base metal is resistant to intergranular corrosion. The indicator of susceptibility to intergranular corrosion (Qr/Qp)GBA is ~ 6 times higher for the heat affected zone (at 150 A welding current intensity) than for the base metal. Obtained testing results show that the welding current intensity greatly influences the susceptibility to intergranular corrosion in welded joints of stainless steel X5Cr-Ni18-10. AB - Ispitana je sklonost prema interkristalnoj koroziji zavarenog spoja austenitnog nerđajućeg čelika X5Cr-Ni18-10. Zavareni spoj je formiran pri različitim jačinama struje zavarivanja (110 A, 130 A i 150 A). Ispitivanja su vršena metodom elektrohemijske potenciokinetičke reaktivacije sa dvostrukom petljom (DL EPR metoda), na osnovnom metalu i u zoni uticaja toplote (ZUT). Osnovni metal je otporan prema interkristalnoj koroziji. Zona uticaja toplote formirana pri zavarivanju strujom jačine 150 A pokazuje najveću sklonost prema interkristalnoj koroziji. Sklonost prema interkristalnoj koroziji je znatno niža pri zavarivanju manjim jačinama struje. Pokazatelj sklonosti prema interkristalnoj koroziji (Qr/Qp)GBA je ~ 6 puta veći za zonu uticaja toplote (pri jačini struje zavarivanja od 150 A) nego za osnovni metal. Na osnovu prikazanih rezultata može se zaključiti da jačina struje zavarivanja u velikoj meri utiče na sklonost zavarenog spoja nerđajućeg čelika X5CrNi18-10 prema interkristalnoj koroziji. . PB - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd T2 - Zavarivanje i zavarene konstrukcije T1 - Influence of welding current intensity on susceptibility to intergranular corrosion in welded joints of stainless steel T1 - Uticaj jačine struje zavarivanja na sklonost prema interkristalnoj koroziji zavarenog spoja nerdajućeg čelika VL - 62 IS - 4 SP - 149 EP - 154 DO - 10.5937/zzk1704149J ER -
@article{ author = "Jegdić, Bore and Bobić, Biljana and Alić, Behar", year = "2017", abstract = "Susceptibility to intergranular corrosion in welded joints of austenitic stainless steel X5Cr-Ni18-10 was tested. The welding was performed with different intensity of welding current (110 A, 130 A and 150 A). The tests were performed using electrochemical potentiokinetic reactivation method with double loop (DL EPR method) on the base metal and in the heat affected zone. The results obtained by the DL EPR method show that the heat affected zone formed by welding with 150 A has the highest susceptibility to intergranular corrosion. The susceptibility to intergranular corrosion is considerably lower when applying smaller welding current. The base metal is resistant to intergranular corrosion. The indicator of susceptibility to intergranular corrosion (Qr/Qp)GBA is ~ 6 times higher for the heat affected zone (at 150 A welding current intensity) than for the base metal. Obtained testing results show that the welding current intensity greatly influences the susceptibility to intergranular corrosion in welded joints of stainless steel X5Cr-Ni18-10., Ispitana je sklonost prema interkristalnoj koroziji zavarenog spoja austenitnog nerđajućeg čelika X5Cr-Ni18-10. Zavareni spoj je formiran pri različitim jačinama struje zavarivanja (110 A, 130 A i 150 A). Ispitivanja su vršena metodom elektrohemijske potenciokinetičke reaktivacije sa dvostrukom petljom (DL EPR metoda), na osnovnom metalu i u zoni uticaja toplote (ZUT). Osnovni metal je otporan prema interkristalnoj koroziji. Zona uticaja toplote formirana pri zavarivanju strujom jačine 150 A pokazuje najveću sklonost prema interkristalnoj koroziji. Sklonost prema interkristalnoj koroziji je znatno niža pri zavarivanju manjim jačinama struje. Pokazatelj sklonosti prema interkristalnoj koroziji (Qr/Qp)GBA je ~ 6 puta veći za zonu uticaja toplote (pri jačini struje zavarivanja od 150 A) nego za osnovni metal. Na osnovu prikazanih rezultata može se zaključiti da jačina struje zavarivanja u velikoj meri utiče na sklonost zavarenog spoja nerđajućeg čelika X5CrNi18-10 prema interkristalnoj koroziji. .", publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd", journal = "Zavarivanje i zavarene konstrukcije", title = "Influence of welding current intensity on susceptibility to intergranular corrosion in welded joints of stainless steel, Uticaj jačine struje zavarivanja na sklonost prema interkristalnoj koroziji zavarenog spoja nerdajućeg čelika", volume = "62", number = "4", pages = "149-154", doi = "10.5937/zzk1704149J" }
Jegdić, B., Bobić, B.,& Alić, B.. (2017). Influence of welding current intensity on susceptibility to intergranular corrosion in welded joints of stainless steel. in Zavarivanje i zavarene konstrukcije DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd., 62(4), 149-154. https://doi.org/10.5937/zzk1704149J
Jegdić B, Bobić B, Alić B. Influence of welding current intensity on susceptibility to intergranular corrosion in welded joints of stainless steel. in Zavarivanje i zavarene konstrukcije. 2017;62(4):149-154. doi:10.5937/zzk1704149J .
Jegdić, Bore, Bobić, Biljana, Alić, Behar, "Influence of welding current intensity on susceptibility to intergranular corrosion in welded joints of stainless steel" in Zavarivanje i zavarene konstrukcije, 62, no. 4 (2017):149-154, https://doi.org/10.5937/zzk1704149J . .