Welded Joints Integrity of the Pressure Vessels Pipes Made of Hot Rolled Fine-Grained Steel
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
This paper contains results of tests performed in order
to determine mechanical properties of steel P460NL1, meant for
production of pressure vessels. Arc welding of samples from
which the specimens were taken was carried out through the
application of welding process 111, because it is one of the
processes for the execution of pipelines for the transport of oil or
gas. Micro specimens with diameter of 1,5 mm were tested in
order to determine tensile properties of material taken from the
heat-affected zone and weld metal, while specimens with
diameter of 6 mm were tested in order to determine tensile
properties of parent material. Standard Charpy V-notch
specimens were used in order to determine impact energy.
Results of metallographic tests which refer to the structure of a
pipe welded joint are also presented.
On the basis of results of tensile tests carried out on specimens
taken from parent material, heat-affected zone and weld metal it
was determined that mean valu...es of yield strength and tensile
strength of parent material and weld metal are practically equal,
while these values for heat-affected zone are more than 20%
lower. The situation is similar regarding the value of elongation.
Mean values of overall impact energy for parent material and
weld metal are practically equal, while in comparison with
results obtained for material taken from the heat-affected zone
they are more than 2 times lower. Through the analysis of energy
necessary for initiation and propagation of cracks it was
determined that the ratio of those energies is very good when it
comes to parent material and weld metal, while it was also
determined that the critical location for crack initiation is the
heat-affected zone.
Integrity evaluation of the air tank during exploitation was
carried out through the analytical calculation of strength of the
shell and upper bottom based on their technical properties after
the completion of reparatory welding/surface welding.
Кључне речи:
welded joint / specimens / micro specimens / mechanical properties / integrityИзвор:
Međunarodno Savetovanje Energetika 2021, Energija, ekonomija, ekologija, Zlatibor, Serbia, 2021, 346-350Издавач:
- Savez energetičara
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200012 (Институт за испитивање материјала Србије - ИМС, Београд) (RS-MESTD-inst-2020-200012)
Институција/група
Institut za ispitivanje materijalaTY - CONF AU - Arsić, Miodrag AU - Grabulov, Vencislav AU - Bulatović, Srđan AU - Mladenović, Mladen AU - Savić, Zoran PY - 2021 UR - http://rims.institutims.rs/handle/123456789/875 AB - This paper contains results of tests performed in order to determine mechanical properties of steel P460NL1, meant for production of pressure vessels. Arc welding of samples from which the specimens were taken was carried out through the application of welding process 111, because it is one of the processes for the execution of pipelines for the transport of oil or gas. Micro specimens with diameter of 1,5 mm were tested in order to determine tensile properties of material taken from the heat-affected zone and weld metal, while specimens with diameter of 6 mm were tested in order to determine tensile properties of parent material. Standard Charpy V-notch specimens were used in order to determine impact energy. Results of metallographic tests which refer to the structure of a pipe welded joint are also presented. On the basis of results of tensile tests carried out on specimens taken from parent material, heat-affected zone and weld metal it was determined that mean values of yield strength and tensile strength of parent material and weld metal are practically equal, while these values for heat-affected zone are more than 20% lower. The situation is similar regarding the value of elongation. Mean values of overall impact energy for parent material and weld metal are practically equal, while in comparison with results obtained for material taken from the heat-affected zone they are more than 2 times lower. Through the analysis of energy necessary for initiation and propagation of cracks it was determined that the ratio of those energies is very good when it comes to parent material and weld metal, while it was also determined that the critical location for crack initiation is the heat-affected zone. Integrity evaluation of the air tank during exploitation was carried out through the analytical calculation of strength of the shell and upper bottom based on their technical properties after the completion of reparatory welding/surface welding. PB - Savez energetičara C3 - Međunarodno Savetovanje Energetika 2021, Energija, ekonomija, ekologija, Zlatibor, Serbia T1 - Welded Joints Integrity of the Pressure Vessels Pipes Made of Hot Rolled Fine-Grained Steel EP - 350 SP - 346 UR - https://hdl.handle.net/21.15107/rcub_rims_875 ER -
@conference{ author = "Arsić, Miodrag and Grabulov, Vencislav and Bulatović, Srđan and Mladenović, Mladen and Savić, Zoran", year = "2021", abstract = "This paper contains results of tests performed in order to determine mechanical properties of steel P460NL1, meant for production of pressure vessels. Arc welding of samples from which the specimens were taken was carried out through the application of welding process 111, because it is one of the processes for the execution of pipelines for the transport of oil or gas. Micro specimens with diameter of 1,5 mm were tested in order to determine tensile properties of material taken from the heat-affected zone and weld metal, while specimens with diameter of 6 mm were tested in order to determine tensile properties of parent material. Standard Charpy V-notch specimens were used in order to determine impact energy. Results of metallographic tests which refer to the structure of a pipe welded joint are also presented. On the basis of results of tensile tests carried out on specimens taken from parent material, heat-affected zone and weld metal it was determined that mean values of yield strength and tensile strength of parent material and weld metal are practically equal, while these values for heat-affected zone are more than 20% lower. The situation is similar regarding the value of elongation. Mean values of overall impact energy for parent material and weld metal are practically equal, while in comparison with results obtained for material taken from the heat-affected zone they are more than 2 times lower. Through the analysis of energy necessary for initiation and propagation of cracks it was determined that the ratio of those energies is very good when it comes to parent material and weld metal, while it was also determined that the critical location for crack initiation is the heat-affected zone. Integrity evaluation of the air tank during exploitation was carried out through the analytical calculation of strength of the shell and upper bottom based on their technical properties after the completion of reparatory welding/surface welding.", publisher = "Savez energetičara", journal = "Međunarodno Savetovanje Energetika 2021, Energija, ekonomija, ekologija, Zlatibor, Serbia", title = "Welded Joints Integrity of the Pressure Vessels Pipes Made of Hot Rolled Fine-Grained Steel", pages = "350-346", url = "https://hdl.handle.net/21.15107/rcub_rims_875" }
Arsić, M., Grabulov, V., Bulatović, S., Mladenović, M.,& Savić, Z.. (2021). Welded Joints Integrity of the Pressure Vessels Pipes Made of Hot Rolled Fine-Grained Steel. in Međunarodno Savetovanje Energetika 2021, Energija, ekonomija, ekologija, Zlatibor, Serbia Savez energetičara., 346-350. https://hdl.handle.net/21.15107/rcub_rims_875
Arsić M, Grabulov V, Bulatović S, Mladenović M, Savić Z. Welded Joints Integrity of the Pressure Vessels Pipes Made of Hot Rolled Fine-Grained Steel. in Međunarodno Savetovanje Energetika 2021, Energija, ekonomija, ekologija, Zlatibor, Serbia. 2021;:346-350. https://hdl.handle.net/21.15107/rcub_rims_875 .
Arsić, Miodrag, Grabulov, Vencislav, Bulatović, Srđan, Mladenović, Mladen, Savić, Zoran, "Welded Joints Integrity of the Pressure Vessels Pipes Made of Hot Rolled Fine-Grained Steel" in Međunarodno Savetovanje Energetika 2021, Energija, ekonomija, ekologija, Zlatibor, Serbia (2021):346-350, https://hdl.handle.net/21.15107/rcub_rims_875 .