Characterization of Tube Repair Weld in Thermal Power Plant Made of a 12% Cr Tempered Martensite Ferritic Steel
Нема приказа
Аутори
Bakić, GordanaĐukić, Miloš
Rajičić, Bratislav
Zeravčić-Šijački, Vera
Maslarević, Aleksandar
Radović, Miladin
Maksimović, Vesna
Milošević, Nenad
Поглавље у монографији (Објављена верзија)
Метаподаци
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The heat resistant tempered martensite ferritic steel X20CrMoV121 (DIN) has been extensively used within the last few decades as a material for boiler tubing systems and pipelines in thermal power plants (TPP). Long-term behavior of this steel is vastly researched and very well known, but main disadvantage is its poor weldability. In situ welding of martensitic steels is always challenging task and is usually quite difficult to implement properly in a short time, during forced outages of TPP. In this paper, characterization and mechanical properties of undermatch welded joint made during partial replacement of boiler outlet superheater (SH) in TPP by austenitic filler material, after 10 years of service are presented. Due to "cold" technique of welding, which does not required post weld heat treatment, this procedure were regular and widely used repair welding technique in two TPP (620 MW) units. In the purpose of comparison, two other type of matching welding joints of the same SH wer...e also characterized: shop welded joint made by electrical resistance flash butt welding, as well as field welded joint made by gas tungsten arc welding during assembling of SH, which were both in service approximately 150,000 h.
Извор:
Fracture At All Scales, 2017, 151-169Издавач:
- Springer-Verlag Berlin, Berlin
DOI: 10.1007/978-3-319-32634-4_8
ISSN: 2195-4356
WoS: 000392140800008
Scopus: 2-s2.0-85019217183
Институција/група
Inovacioni centarTY - CHAP AU - Bakić, Gordana AU - Đukić, Miloš AU - Rajičić, Bratislav AU - Zeravčić-Šijački, Vera AU - Maslarević, Aleksandar AU - Radović, Miladin AU - Maksimović, Vesna AU - Milošević, Nenad PY - 2017 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2538 AB - The heat resistant tempered martensite ferritic steel X20CrMoV121 (DIN) has been extensively used within the last few decades as a material for boiler tubing systems and pipelines in thermal power plants (TPP). Long-term behavior of this steel is vastly researched and very well known, but main disadvantage is its poor weldability. In situ welding of martensitic steels is always challenging task and is usually quite difficult to implement properly in a short time, during forced outages of TPP. In this paper, characterization and mechanical properties of undermatch welded joint made during partial replacement of boiler outlet superheater (SH) in TPP by austenitic filler material, after 10 years of service are presented. Due to "cold" technique of welding, which does not required post weld heat treatment, this procedure were regular and widely used repair welding technique in two TPP (620 MW) units. In the purpose of comparison, two other type of matching welding joints of the same SH were also characterized: shop welded joint made by electrical resistance flash butt welding, as well as field welded joint made by gas tungsten arc welding during assembling of SH, which were both in service approximately 150,000 h. PB - Springer-Verlag Berlin, Berlin T2 - Fracture At All Scales T1 - Characterization of Tube Repair Weld in Thermal Power Plant Made of a 12% Cr Tempered Martensite Ferritic Steel EP - 169 SP - 151 DO - 10.1007/978-3-319-32634-4_8 ER -
@inbook{ author = "Bakić, Gordana and Đukić, Miloš and Rajičić, Bratislav and Zeravčić-Šijački, Vera and Maslarević, Aleksandar and Radović, Miladin and Maksimović, Vesna and Milošević, Nenad", year = "2017", abstract = "The heat resistant tempered martensite ferritic steel X20CrMoV121 (DIN) has been extensively used within the last few decades as a material for boiler tubing systems and pipelines in thermal power plants (TPP). Long-term behavior of this steel is vastly researched and very well known, but main disadvantage is its poor weldability. In situ welding of martensitic steels is always challenging task and is usually quite difficult to implement properly in a short time, during forced outages of TPP. In this paper, characterization and mechanical properties of undermatch welded joint made during partial replacement of boiler outlet superheater (SH) in TPP by austenitic filler material, after 10 years of service are presented. Due to "cold" technique of welding, which does not required post weld heat treatment, this procedure were regular and widely used repair welding technique in two TPP (620 MW) units. In the purpose of comparison, two other type of matching welding joints of the same SH were also characterized: shop welded joint made by electrical resistance flash butt welding, as well as field welded joint made by gas tungsten arc welding during assembling of SH, which were both in service approximately 150,000 h.", publisher = "Springer-Verlag Berlin, Berlin", journal = "Fracture At All Scales", booktitle = "Characterization of Tube Repair Weld in Thermal Power Plant Made of a 12% Cr Tempered Martensite Ferritic Steel", pages = "169-151", doi = "10.1007/978-3-319-32634-4_8" }
Bakić, G., Đukić, M., Rajičić, B., Zeravčić-Šijački, V., Maslarević, A., Radović, M., Maksimović, V.,& Milošević, N.. (2017). Characterization of Tube Repair Weld in Thermal Power Plant Made of a 12% Cr Tempered Martensite Ferritic Steel. in Fracture At All Scales Springer-Verlag Berlin, Berlin., 151-169. https://doi.org/10.1007/978-3-319-32634-4_8
Bakić G, Đukić M, Rajičić B, Zeravčić-Šijački V, Maslarević A, Radović M, Maksimović V, Milošević N. Characterization of Tube Repair Weld in Thermal Power Plant Made of a 12% Cr Tempered Martensite Ferritic Steel. in Fracture At All Scales. 2017;:151-169. doi:10.1007/978-3-319-32634-4_8 .
Bakić, Gordana, Đukić, Miloš, Rajičić, Bratislav, Zeravčić-Šijački, Vera, Maslarević, Aleksandar, Radović, Miladin, Maksimović, Vesna, Milošević, Nenad, "Characterization of Tube Repair Weld in Thermal Power Plant Made of a 12% Cr Tempered Martensite Ferritic Steel" in Fracture At All Scales (2017):151-169, https://doi.org/10.1007/978-3-319-32634-4_8 . .