Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'
Abstract
Presented are results of non-destructive tests performed on the parent material and welded joints of structural parts of a breeches pipe (collar and anchor), and results of destructive tests performed on the parent material of the anchor. Non-destructive testing included visual (VT), mag-netic particle (MT), and ultrasonic testing (UT), while destructive tests included determination of chemical com-position, tensile properties, impact energy and hardness. Based on test results it is established that the major cause for the occurrence of damage in the carrying structure of the breeches pipe no.1 of pipeline III, or in other words, the degradation of anchor parent material and welded joints between the collar and anchor, and between the pipeline and anchor, is in the fact that the breeches pipe started to lean, not on the collar, as specified by design, but on the anchor that could not endure all loads occurring in service.
Keywords:
Welded joints / Material degradation / Breeches pipeSource:
Structural Integrity and Life, 2015, 15, 3, 147-151Publisher:
- Institut za ispitivanje materijala, Beograd
Funding / projects:
- Development of new revitalization methodologies for hydro power plant turbine and hydro-mechanical equipment in relation to causes of material degradation (RS-MESTD-Technological Development (TD or TR)-35002)
Collections
Institution/Community
Inovacioni centarTY - JOUR AU - Sedmak, Simon AU - Arsić, M. AU - Bajić, Darko AU - Mladenović, Mladen AU - Savić, Zoran PY - 2015 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2120 AB - Presented are results of non-destructive tests performed on the parent material and welded joints of structural parts of a breeches pipe (collar and anchor), and results of destructive tests performed on the parent material of the anchor. Non-destructive testing included visual (VT), mag-netic particle (MT), and ultrasonic testing (UT), while destructive tests included determination of chemical com-position, tensile properties, impact energy and hardness. Based on test results it is established that the major cause for the occurrence of damage in the carrying structure of the breeches pipe no.1 of pipeline III, or in other words, the degradation of anchor parent material and welded joints between the collar and anchor, and between the pipeline and anchor, is in the fact that the breeches pipe started to lean, not on the collar, as specified by design, but on the anchor that could not endure all loads occurring in service. PB - Institut za ispitivanje materijala, Beograd T2 - Structural Integrity and Life T1 - Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica' EP - 151 IS - 3 SP - 147 VL - 15 UR - https://hdl.handle.net/21.15107/rcub_machinery_2120 ER -
@article{ author = "Sedmak, Simon and Arsić, M. and Bajić, Darko and Mladenović, Mladen and Savić, Zoran", year = "2015", abstract = "Presented are results of non-destructive tests performed on the parent material and welded joints of structural parts of a breeches pipe (collar and anchor), and results of destructive tests performed on the parent material of the anchor. Non-destructive testing included visual (VT), mag-netic particle (MT), and ultrasonic testing (UT), while destructive tests included determination of chemical com-position, tensile properties, impact energy and hardness. Based on test results it is established that the major cause for the occurrence of damage in the carrying structure of the breeches pipe no.1 of pipeline III, or in other words, the degradation of anchor parent material and welded joints between the collar and anchor, and between the pipeline and anchor, is in the fact that the breeches pipe started to lean, not on the collar, as specified by design, but on the anchor that could not endure all loads occurring in service.", publisher = "Institut za ispitivanje materijala, Beograd", journal = "Structural Integrity and Life", title = "Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'", pages = "151-147", number = "3", volume = "15", url = "https://hdl.handle.net/21.15107/rcub_machinery_2120" }
Sedmak, S., Arsić, M., Bajić, D., Mladenović, M.,& Savić, Z.. (2015). Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'. in Structural Integrity and Life Institut za ispitivanje materijala, Beograd., 15(3), 147-151. https://hdl.handle.net/21.15107/rcub_machinery_2120
Sedmak S, Arsić M, Bajić D, Mladenović M, Savić Z. Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'. in Structural Integrity and Life. 2015;15(3):147-151. https://hdl.handle.net/21.15107/rcub_machinery_2120 .
Sedmak, Simon, Arsić, M., Bajić, Darko, Mladenović, Mladen, Savić, Zoran, "Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'" in Structural Integrity and Life, 15, no. 3 (2015):147-151, https://hdl.handle.net/21.15107/rcub_machinery_2120 .