Procena preostalog veka trajanja bubnja kotla sa aspekta mikrostrukture zavarenih spojeva
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May 5, 2017
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Apstrakt
U radu je prikazana korelacija između preostalog veka života i mikrostrukturnog stanja zavarenih spojeva, uključujući i tvrdoću, na primeru bubnja kotla iz termoelektrane instalisane snage 210 MW, u uslovima puzanja. Nakon 20 i više godina rada, pod uticajem temperature i naprezanja, u površinskom sloju zavarenih spojeva bubnja kotla došlo je do mikrostrukturnih promena izazvanih nastajanjem mikropora, mikrošuplina, zatim mikroprslina kao i makroprslina. Procena mikrostrukture i nastalih oštećenja izvršena je prema preporukama Evropske komisije – Residual Life Assessment and Microstructure, korišćenjem svetlosne mikroskopije. Rad uključuje i opis primenjene tehnike za mikrostrukturna ispitivanja komponenti nedestruktivnom metodom – metodu replika.
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Kako citirati
KOVAČEVIĆ, Z. et al.
Procena preostalog veka trajanja bubnja kotla sa aspekta mikrostrukture zavarenih spojeva.
Zbornik Međunarodnog kongresa o procesnoj industriji – Procesing, [S.l.], v. 23, n. 1, may 2017.
Dostupno na: <https://izdanja.smeits.rs/index.php/ptk/article/view/2461>. Datum pristupa: 16 mar. 2026
Sekcija
Tehnička regulativa, standardizacija i sistem kvaliteta
Reference
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[2] Neubauer, B., Wedel, V., Restlife Estimation of Creeping Components by Means of Replicas, ASME International Conference on Advances in Life Prediction Methods, eds. D.A. Woodford and J.R. Whitehead. New York, NY: ASME , 1983, pp. 353 – 356.
[3] Arharov, A.M., Isaev, S.I., Kožinov, I.A., i dr.: Teplotehnika, Moskva 1986, Mašinostroenie, pp. 149-167.
[4] Guideline for the Assessment of Microstructure and Damage Development of Creep Exposed Materials for Pipes and Boiler Components, Essen 1992, 8-88.
[5] Le May, I., da Silveira, T.L., and Vianna, C.H., Criteria for the Evaluation of Damage and Remaining Life in Reformer Furnace Tubes, International Journal of Pressure Vessels and Piping, 66/1996, pp. 233 – 241.
[6] Kovačević, Z., Karastojković, Z., Janjušević, Z., Characteristic changes in microstructure of steel ČSN 15223.9 from boiler drum at power station monitored by replica method, Proceedings, 41st Int. October Conf. on Mining and Metallurgy., Kladovo, Serbia, October 4-6, 2009, pp. 629-636.
[7] Karastojković, Z., Kovačević, Z., Specific shapes of ferrite lamellae in steel ČSN 15223.9 in boiler drum after servicing at elevated temperatures, Proceedings, 41st Int. October Conf. on Mining and Metallurgy., Kladovo, Serbia, October 4-6, 2009, pp. 659-666.
[8] Kovačević, Z., Karastojković, Z., The beginning of high-temperature corrosion in steel from boiler drum, Proceedings,11th YUCORR, Tara, Serbia, 15.05.-20.05.2009., pp. 314-318.
[9] Karastojković, Z., Janjušević, Z., Kovačević, Z., Sarić, V., Čubrilović, S., Korozija toplovoda, Integritet i vek konstrukcija, Vol. 7, No 2, 2007., pp. 129-132.
[10] Brett, S., Buchanan, L.W., Concari, S., at all, Residual Life Assessment and Microstructure, ECCC Recommendations, Piacenza, Italy, Vol. 6, pp. 8-12.
[11] G. Jovičić, M. Živković, et all.: A Numerical Procedure for Calculation of Stress Intensity Factors and its Use for Life Assessment of Steam Turbine Housing of
Thermal Power Plant, Book of Proceedings from VIII Int. Fracture Mechanics Summer School, Belgrade 2004, DIVK-TMF, pp. 188.
[12] Remmert, H., Tolksdorf, E.,Guideline for the Assessment of Microstructure and Damage Development of Creep Exposed Materials for Pipes and Boiler Components, Technicalscientific Report, 1993, Essen.
[2] Neubauer, B., Wedel, V., Restlife Estimation of Creeping Components by Means of Replicas, ASME International Conference on Advances in Life Prediction Methods, eds. D.A. Woodford and J.R. Whitehead. New York, NY: ASME , 1983, pp. 353 – 356.
[3] Arharov, A.M., Isaev, S.I., Kožinov, I.A., i dr.: Teplotehnika, Moskva 1986, Mašinostroenie, pp. 149-167.
[4] Guideline for the Assessment of Microstructure and Damage Development of Creep Exposed Materials for Pipes and Boiler Components, Essen 1992, 8-88.
[5] Le May, I., da Silveira, T.L., and Vianna, C.H., Criteria for the Evaluation of Damage and Remaining Life in Reformer Furnace Tubes, International Journal of Pressure Vessels and Piping, 66/1996, pp. 233 – 241.
[6] Kovačević, Z., Karastojković, Z., Janjušević, Z., Characteristic changes in microstructure of steel ČSN 15223.9 from boiler drum at power station monitored by replica method, Proceedings, 41st Int. October Conf. on Mining and Metallurgy., Kladovo, Serbia, October 4-6, 2009, pp. 629-636.
[7] Karastojković, Z., Kovačević, Z., Specific shapes of ferrite lamellae in steel ČSN 15223.9 in boiler drum after servicing at elevated temperatures, Proceedings, 41st Int. October Conf. on Mining and Metallurgy., Kladovo, Serbia, October 4-6, 2009, pp. 659-666.
[8] Kovačević, Z., Karastojković, Z., The beginning of high-temperature corrosion in steel from boiler drum, Proceedings,11th YUCORR, Tara, Serbia, 15.05.-20.05.2009., pp. 314-318.
[9] Karastojković, Z., Janjušević, Z., Kovačević, Z., Sarić, V., Čubrilović, S., Korozija toplovoda, Integritet i vek konstrukcija, Vol. 7, No 2, 2007., pp. 129-132.
[10] Brett, S., Buchanan, L.W., Concari, S., at all, Residual Life Assessment and Microstructure, ECCC Recommendations, Piacenza, Italy, Vol. 6, pp. 8-12.
[11] G. Jovičić, M. Živković, et all.: A Numerical Procedure for Calculation of Stress Intensity Factors and its Use for Life Assessment of Steam Turbine Housing of
Thermal Power Plant, Book of Proceedings from VIII Int. Fracture Mechanics Summer School, Belgrade 2004, DIVK-TMF, pp. 188.
[12] Remmert, H., Tolksdorf, E.,Guideline for the Assessment of Microstructure and Damage Development of Creep Exposed Materials for Pipes and Boiler Components, Technicalscientific Report, 1993, Essen.