Uticaj unete količine toplote pri zavarivanju na žilavost metala šava mikrolegiranih čelika
The effect of welding heat input on the weld metal toughness of microalloyed steels
Апстракт
Žilavost metala šava, jedan od kriterijuma prihvatljivosti zavarenog spoja, zavisi od količine unete toplote. Udarna žilavost metala šava dva toplo valjana mikrolegirana čelika, zavarena elektrolučnim postupkom u zaštiti mešavine gasova (Ar + 5% CO2+0,91% O2) je ispitana merenjem energije loma na instrumentiranom Šarpijevom klatnu. Utvrđeno je da je količina unete toplote od 7 kJ/cm optimalna za žilavost metala šava oba ispitivana čelika. Energija rasta prsline, kao bitna za žilavost metala šava, je za ovu količinu unete toplote veća od kritične, pa se ovako zavareni spoj može preporučiti za konstrukcije koje rade na niskim temperaturama.
Weld metal toughness, one of weldment acceptability criteria, depends on heat input. Weld metal impact toughness of two hot rolled microalloyed steels, welded by electric arc with mixture gases shielding (Ar + 5% CO2+0,91% O2) is tested by measuring impact energy on instrumented Charpy pendulum. It has been found that heat input of 7 kJ/cm is optimal for weld metal toughness of both investigated steels. Crack growth energy, as substantial for weld metal toughness, is for this heat input higher than critical, and welded joint, produced in this way, can be recommended for manufacturing of welded structures for low temperature application.
Кључне речи:
žilavost metala šava / zavarivanje u zaštiti gasom / mikrolegirani čelici / mešavina gasova / količina unete toplote / weld metal toughness / shielded gas mixture / microalloyed steels / heat input / gas shielded weldingИзвор:
Zavarivanje i zavarene konstrukcije, 2000, 45, 3, 107-112Издавач:
- DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
Институција/група
Inovacioni centarTY - JOUR AU - Prokić-Cvetković, Radica AU - Milosavljević, Anđelka AU - Sedmak, Aleksandar AU - Burzić, Zijah PY - 2000 UR - https://machinery.mas.bg.ac.rs/handle/123456789/196 AB - Žilavost metala šava, jedan od kriterijuma prihvatljivosti zavarenog spoja, zavisi od količine unete toplote. Udarna žilavost metala šava dva toplo valjana mikrolegirana čelika, zavarena elektrolučnim postupkom u zaštiti mešavine gasova (Ar + 5% CO2+0,91% O2) je ispitana merenjem energije loma na instrumentiranom Šarpijevom klatnu. Utvrđeno je da je količina unete toplote od 7 kJ/cm optimalna za žilavost metala šava oba ispitivana čelika. Energija rasta prsline, kao bitna za žilavost metala šava, je za ovu količinu unete toplote veća od kritične, pa se ovako zavareni spoj može preporučiti za konstrukcije koje rade na niskim temperaturama. AB - Weld metal toughness, one of weldment acceptability criteria, depends on heat input. Weld metal impact toughness of two hot rolled microalloyed steels, welded by electric arc with mixture gases shielding (Ar + 5% CO2+0,91% O2) is tested by measuring impact energy on instrumented Charpy pendulum. It has been found that heat input of 7 kJ/cm is optimal for weld metal toughness of both investigated steels. Crack growth energy, as substantial for weld metal toughness, is for this heat input higher than critical, and welded joint, produced in this way, can be recommended for manufacturing of welded structures for low temperature application. PB - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd T2 - Zavarivanje i zavarene konstrukcije T1 - Uticaj unete količine toplote pri zavarivanju na žilavost metala šava mikrolegiranih čelika T1 - The effect of welding heat input on the weld metal toughness of microalloyed steels EP - 112 IS - 3 SP - 107 VL - 45 UR - https://hdl.handle.net/21.15107/rcub_machinery_196 ER -
@article{ author = "Prokić-Cvetković, Radica and Milosavljević, Anđelka and Sedmak, Aleksandar and Burzić, Zijah", year = "2000", abstract = "Žilavost metala šava, jedan od kriterijuma prihvatljivosti zavarenog spoja, zavisi od količine unete toplote. Udarna žilavost metala šava dva toplo valjana mikrolegirana čelika, zavarena elektrolučnim postupkom u zaštiti mešavine gasova (Ar + 5% CO2+0,91% O2) je ispitana merenjem energije loma na instrumentiranom Šarpijevom klatnu. Utvrđeno je da je količina unete toplote od 7 kJ/cm optimalna za žilavost metala šava oba ispitivana čelika. Energija rasta prsline, kao bitna za žilavost metala šava, je za ovu količinu unete toplote veća od kritične, pa se ovako zavareni spoj može preporučiti za konstrukcije koje rade na niskim temperaturama., Weld metal toughness, one of weldment acceptability criteria, depends on heat input. Weld metal impact toughness of two hot rolled microalloyed steels, welded by electric arc with mixture gases shielding (Ar + 5% CO2+0,91% O2) is tested by measuring impact energy on instrumented Charpy pendulum. It has been found that heat input of 7 kJ/cm is optimal for weld metal toughness of both investigated steels. Crack growth energy, as substantial for weld metal toughness, is for this heat input higher than critical, and welded joint, produced in this way, can be recommended for manufacturing of welded structures for low temperature application.", publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd", journal = "Zavarivanje i zavarene konstrukcije", title = "Uticaj unete količine toplote pri zavarivanju na žilavost metala šava mikrolegiranih čelika, The effect of welding heat input on the weld metal toughness of microalloyed steels", pages = "112-107", number = "3", volume = "45", url = "https://hdl.handle.net/21.15107/rcub_machinery_196" }
Prokić-Cvetković, R., Milosavljević, A., Sedmak, A.,& Burzić, Z.. (2000). Uticaj unete količine toplote pri zavarivanju na žilavost metala šava mikrolegiranih čelika. in Zavarivanje i zavarene konstrukcije DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd., 45(3), 107-112. https://hdl.handle.net/21.15107/rcub_machinery_196
Prokić-Cvetković R, Milosavljević A, Sedmak A, Burzić Z. Uticaj unete količine toplote pri zavarivanju na žilavost metala šava mikrolegiranih čelika. in Zavarivanje i zavarene konstrukcije. 2000;45(3):107-112. https://hdl.handle.net/21.15107/rcub_machinery_196 .
Prokić-Cvetković, Radica, Milosavljević, Anđelka, Sedmak, Aleksandar, Burzić, Zijah, "Uticaj unete količine toplote pri zavarivanju na žilavost metala šava mikrolegiranih čelika" in Zavarivanje i zavarene konstrukcije, 45, no. 3 (2000):107-112, https://hdl.handle.net/21.15107/rcub_machinery_196 .