Material characterization of the main steam gate valve made of X20CrMoV 12.1 steel after long term service
2014
Аутори
Bakić, GordanaZeravčić-Šijački, Vera
Đukić, Miloš
Perunicić, V.
Prodanović, A.
Rajičić, Bratislav
Gajić, I.
Sekeljić, P.
Gregorjev, N.
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Martensitic steel X20CrMo12.1 has been extensively used within the last few decades as a material for tubing systems and pipelines in thermal power plants (TPP). Long term behavior of this steel is very well known and understood and because of that was found to be reliable material for prolonged service at elevated temperatures. It is well known that during operation TPP components are subject to microstructural changes that inevitably reflect decrease in their mechanical properties that lead to the loss of structural integrity and serviceability of component. This paper deals with the comprehensive investigation carried out on the main steam gate valve parent material of welded joint, as a part of main steam pipeline, after 170.000 h of service (545 degrees C and 19MPa). The obtained results showed that the microstructural degradation caused by long term operation had little effects on the hardness and strength of material, while the changes in impact toughness were observed. Comprehe...nsive microstructural analysis included the examination of the microstructure on the surface and trough the wall thickness.
Кључне речи:
SEIVI / microstructure / impact toughness / heat resistant steel / creepИзвор:
20th European Conference on Fracture, 2014, 3, 1512-1517Издавач:
- Elsevier Science Bv, Amsterdam
Институција/група
Inovacioni centarTY - CONF AU - Bakić, Gordana AU - Zeravčić-Šijački, Vera AU - Đukić, Miloš AU - Perunicić, V. AU - Prodanović, A. AU - Rajičić, Bratislav AU - Gajić, I. AU - Sekeljić, P. AU - Gregorjev, N. PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2017 AB - Martensitic steel X20CrMo12.1 has been extensively used within the last few decades as a material for tubing systems and pipelines in thermal power plants (TPP). Long term behavior of this steel is very well known and understood and because of that was found to be reliable material for prolonged service at elevated temperatures. It is well known that during operation TPP components are subject to microstructural changes that inevitably reflect decrease in their mechanical properties that lead to the loss of structural integrity and serviceability of component. This paper deals with the comprehensive investigation carried out on the main steam gate valve parent material of welded joint, as a part of main steam pipeline, after 170.000 h of service (545 degrees C and 19MPa). The obtained results showed that the microstructural degradation caused by long term operation had little effects on the hardness and strength of material, while the changes in impact toughness were observed. Comprehensive microstructural analysis included the examination of the microstructure on the surface and trough the wall thickness. PB - Elsevier Science Bv, Amsterdam C3 - 20th European Conference on Fracture T1 - Material characterization of the main steam gate valve made of X20CrMoV 12.1 steel after long term service EP - 1517 SP - 1512 VL - 3 DO - 10.1016/j.mspro.2014.06.244 ER -
@conference{ author = "Bakić, Gordana and Zeravčić-Šijački, Vera and Đukić, Miloš and Perunicić, V. and Prodanović, A. and Rajičić, Bratislav and Gajić, I. and Sekeljić, P. and Gregorjev, N.", year = "2014", abstract = "Martensitic steel X20CrMo12.1 has been extensively used within the last few decades as a material for tubing systems and pipelines in thermal power plants (TPP). Long term behavior of this steel is very well known and understood and because of that was found to be reliable material for prolonged service at elevated temperatures. It is well known that during operation TPP components are subject to microstructural changes that inevitably reflect decrease in their mechanical properties that lead to the loss of structural integrity and serviceability of component. This paper deals with the comprehensive investigation carried out on the main steam gate valve parent material of welded joint, as a part of main steam pipeline, after 170.000 h of service (545 degrees C and 19MPa). The obtained results showed that the microstructural degradation caused by long term operation had little effects on the hardness and strength of material, while the changes in impact toughness were observed. Comprehensive microstructural analysis included the examination of the microstructure on the surface and trough the wall thickness.", publisher = "Elsevier Science Bv, Amsterdam", journal = "20th European Conference on Fracture", title = "Material characterization of the main steam gate valve made of X20CrMoV 12.1 steel after long term service", pages = "1517-1512", volume = "3", doi = "10.1016/j.mspro.2014.06.244" }
Bakić, G., Zeravčić-Šijački, V., Đukić, M., Perunicić, V., Prodanović, A., Rajičić, B., Gajić, I., Sekeljić, P.,& Gregorjev, N.. (2014). Material characterization of the main steam gate valve made of X20CrMoV 12.1 steel after long term service. in 20th European Conference on Fracture Elsevier Science Bv, Amsterdam., 3, 1512-1517. https://doi.org/10.1016/j.mspro.2014.06.244
Bakić G, Zeravčić-Šijački V, Đukić M, Perunicić V, Prodanović A, Rajičić B, Gajić I, Sekeljić P, Gregorjev N. Material characterization of the main steam gate valve made of X20CrMoV 12.1 steel after long term service. in 20th European Conference on Fracture. 2014;3:1512-1517. doi:10.1016/j.mspro.2014.06.244 .
Bakić, Gordana, Zeravčić-Šijački, Vera, Đukić, Miloš, Perunicić, V., Prodanović, A., Rajičić, Bratislav, Gajić, I., Sekeljić, P., Gregorjev, N., "Material characterization of the main steam gate valve made of X20CrMoV 12.1 steel after long term service" in 20th European Conference on Fracture, 3 (2014):1512-1517, https://doi.org/10.1016/j.mspro.2014.06.244 . .