Analysis of mechanical and structural properties of micro alloyed steel welded joints depending on quality of cored wire
Апстракт
The aim of this study was to master new quality cored wires made of steel strips and the cores filled with metal powders and low molecular hydrophobic compounds. For experimental research, the specimens were made of micro alloyed steel type NIOMOL 490K intended for making welded structures subjected to dynamic loads and effects of low temperature. Welding of test specimens was done using the MAG method in CO2 shielding with two new quality cored wires. The testing included the determination of mechanical properties of the base metal (BM) and the weld metal (WM), which apart from having sufficient strength must also have good toughness. The microstructures of BM, WM and heat affected zone (HAZ) were analysed, due to possible formation of a heterogeneous microstructure, which can reduce toughness. Results of testing of welded joints should define a new quality of cored wires in view of welding-technological characteristics. The results indicate that the new quality cored wires can produc...e good mechanical-structural properties of welded joints.
Кључне речи:
cored wire / mechanical properties of welded joints / micro alloyed steel welding / microstructureИзвор:
Tehnicki vjesnik-Technical Gazette, 2013, 20, 4, 635-640Издавач:
- University of Osijek, Tech Fac, Slavonski Brod
Финансирање / пројекти:
- 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)
- Одрживост и унапређење машинских система у енергетици и транспорту применом форензичког инжењерства, еко и робуст дизајна (RS-MESTD-Technological Development (TD or TR)-35006)
Колекције
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Rakin, Marko AU - Bajić, Nikola AU - Mrdak, Mihailo AU - Veljić, Darko AU - Arsić, Miodrag PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2385 AB - The aim of this study was to master new quality cored wires made of steel strips and the cores filled with metal powders and low molecular hydrophobic compounds. For experimental research, the specimens were made of micro alloyed steel type NIOMOL 490K intended for making welded structures subjected to dynamic loads and effects of low temperature. Welding of test specimens was done using the MAG method in CO2 shielding with two new quality cored wires. The testing included the determination of mechanical properties of the base metal (BM) and the weld metal (WM), which apart from having sufficient strength must also have good toughness. The microstructures of BM, WM and heat affected zone (HAZ) were analysed, due to possible formation of a heterogeneous microstructure, which can reduce toughness. Results of testing of welded joints should define a new quality of cored wires in view of welding-technological characteristics. The results indicate that the new quality cored wires can produce good mechanical-structural properties of welded joints. PB - University of Osijek, Tech Fac, Slavonski Brod T2 - Tehnicki vjesnik-Technical Gazette T1 - Analysis of mechanical and structural properties of micro alloyed steel welded joints depending on quality of cored wire EP - 640 IS - 4 SP - 635 VL - 20 UR - https://hdl.handle.net/21.15107/rcub_technorep_2385 ER -
@article{ author = "Rakin, Marko and Bajić, Nikola and Mrdak, Mihailo and Veljić, Darko and Arsić, Miodrag", year = "2013", abstract = "The aim of this study was to master new quality cored wires made of steel strips and the cores filled with metal powders and low molecular hydrophobic compounds. For experimental research, the specimens were made of micro alloyed steel type NIOMOL 490K intended for making welded structures subjected to dynamic loads and effects of low temperature. Welding of test specimens was done using the MAG method in CO2 shielding with two new quality cored wires. The testing included the determination of mechanical properties of the base metal (BM) and the weld metal (WM), which apart from having sufficient strength must also have good toughness. The microstructures of BM, WM and heat affected zone (HAZ) were analysed, due to possible formation of a heterogeneous microstructure, which can reduce toughness. Results of testing of welded joints should define a new quality of cored wires in view of welding-technological characteristics. The results indicate that the new quality cored wires can produce good mechanical-structural properties of welded joints.", publisher = "University of Osijek, Tech Fac, Slavonski Brod", journal = "Tehnicki vjesnik-Technical Gazette", title = "Analysis of mechanical and structural properties of micro alloyed steel welded joints depending on quality of cored wire", pages = "640-635", number = "4", volume = "20", url = "https://hdl.handle.net/21.15107/rcub_technorep_2385" }
Rakin, M., Bajić, N., Mrdak, M., Veljić, D.,& Arsić, M.. (2013). Analysis of mechanical and structural properties of micro alloyed steel welded joints depending on quality of cored wire. in Tehnicki vjesnik-Technical Gazette University of Osijek, Tech Fac, Slavonski Brod., 20(4), 635-640. https://hdl.handle.net/21.15107/rcub_technorep_2385
Rakin M, Bajić N, Mrdak M, Veljić D, Arsić M. Analysis of mechanical and structural properties of micro alloyed steel welded joints depending on quality of cored wire. in Tehnicki vjesnik-Technical Gazette. 2013;20(4):635-640. https://hdl.handle.net/21.15107/rcub_technorep_2385 .
Rakin, Marko, Bajić, Nikola, Mrdak, Mihailo, Veljić, Darko, Arsić, Miodrag, "Analysis of mechanical and structural properties of micro alloyed steel welded joints depending on quality of cored wire" in Tehnicki vjesnik-Technical Gazette, 20, no. 4 (2013):635-640, https://hdl.handle.net/21.15107/rcub_technorep_2385 .