The effects of composition of shielding gas mixture on the microstructure and toughness of microalloyed steel weld metal
Апстракт
It has been established that the ferrite structure occurring in different morphologic forms dominates in weld metal of microalloyed steel. Acicular ferrite is the most desirable morphology of ferrite, so this paper analyses influence of the composition of gas mixture on the ferrite modification in the weld metal, specially on the morphology of acicular ferrite. At the same time, this morphological form of ferrite is very significant, because it has great influence on the mechanical properties, especially toughness. Five different gas mixtures (Ar, CO2, O2) were used to determine the optimal gas shielded metal arc process. For investigated microalloyed steel, the optimum gas mixture has been established (5% CO2, 0.91% O2, balance Ar), providing maximum impact
energy due to microstructure, consisting predominately of acicular ferrite.
Кључне речи:
microstructure / toughness / microalloyed steel / mixture of shielded gases / acicular ferriteИзвор:
Sinteza 2016 - International Scientific Conference on ICT and E-Business Related Research : Advanced Engineering Systems, 2016, 226-229Финансирање / пројекти:
- Истраживање могућности унапређења технологије заваривања микролегираних челика (RS-MESTD-Technological Development (TD or TR)-35024)
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Popović, Olivera AU - Prokić-Cvetković, Radica AU - Milošević, Nenad AU - Cvetković, Dragan PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4268 AB - It has been established that the ferrite structure occurring in different morphologic forms dominates in weld metal of microalloyed steel. Acicular ferrite is the most desirable morphology of ferrite, so this paper analyses influence of the composition of gas mixture on the ferrite modification in the weld metal, specially on the morphology of acicular ferrite. At the same time, this morphological form of ferrite is very significant, because it has great influence on the mechanical properties, especially toughness. Five different gas mixtures (Ar, CO2, O2) were used to determine the optimal gas shielded metal arc process. For investigated microalloyed steel, the optimum gas mixture has been established (5% CO2, 0.91% O2, balance Ar), providing maximum impact energy due to microstructure, consisting predominately of acicular ferrite. C3 - Sinteza 2016 - International Scientific Conference on ICT and E-Business Related Research : Advanced Engineering Systems T1 - The effects of composition of shielding gas mixture on the microstructure and toughness of microalloyed steel weld metal EP - 229 SP - 226 DO - 10.15308/Sinteza-2016-226-229 ER -
@conference{ author = "Popović, Olivera and Prokić-Cvetković, Radica and Milošević, Nenad and Cvetković, Dragan", year = "2016", abstract = "It has been established that the ferrite structure occurring in different morphologic forms dominates in weld metal of microalloyed steel. Acicular ferrite is the most desirable morphology of ferrite, so this paper analyses influence of the composition of gas mixture on the ferrite modification in the weld metal, specially on the morphology of acicular ferrite. At the same time, this morphological form of ferrite is very significant, because it has great influence on the mechanical properties, especially toughness. Five different gas mixtures (Ar, CO2, O2) were used to determine the optimal gas shielded metal arc process. For investigated microalloyed steel, the optimum gas mixture has been established (5% CO2, 0.91% O2, balance Ar), providing maximum impact energy due to microstructure, consisting predominately of acicular ferrite.", journal = "Sinteza 2016 - International Scientific Conference on ICT and E-Business Related Research : Advanced Engineering Systems", title = "The effects of composition of shielding gas mixture on the microstructure and toughness of microalloyed steel weld metal", pages = "229-226", doi = "10.15308/Sinteza-2016-226-229" }
Popović, O., Prokić-Cvetković, R., Milošević, N.,& Cvetković, D.. (2016). The effects of composition of shielding gas mixture on the microstructure and toughness of microalloyed steel weld metal. in Sinteza 2016 - International Scientific Conference on ICT and E-Business Related Research : Advanced Engineering Systems, 226-229. https://doi.org/10.15308/Sinteza-2016-226-229
Popović O, Prokić-Cvetković R, Milošević N, Cvetković D. The effects of composition of shielding gas mixture on the microstructure and toughness of microalloyed steel weld metal. in Sinteza 2016 - International Scientific Conference on ICT and E-Business Related Research : Advanced Engineering Systems. 2016;:226-229. doi:10.15308/Sinteza-2016-226-229 .
Popović, Olivera, Prokić-Cvetković, Radica, Milošević, Nenad, Cvetković, Dragan, "The effects of composition of shielding gas mixture on the microstructure and toughness of microalloyed steel weld metal" in Sinteza 2016 - International Scientific Conference on ICT and E-Business Related Research : Advanced Engineering Systems (2016):226-229, https://doi.org/10.15308/Sinteza-2016-226-229 . .