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Archives of Metallurgy and Materials

Tytuł artykułu

Assessment of Service Life of HCM12 Steel After 100 000 Hrs of Service

Autorzy Zieliński, A.  Paszkowska, H.  Skupień, P.  Golański, G. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The subject of the research was a material in the form of a ϕ38×4 pipe from HCM12 steel used for steam superheater coils in power boilers with supercritical and ultra-supercritical steam parameters. This article presents results of investigations of mechanical properties and microstructure of material of the examined tube in the as-received condition and after 100,000 h service at 585°C under creep conditions. Creep tests were carried out for the material after 100,000 h service to determine the disposable residual life. The impact of changes in mechanical properties and degradation of the microstructure on the loss of creep resistance compared to the as-received condition was assessed. The investigations have revealed that the examined steel after 100,000 h service meets the requirements for this steel in the as-received condition with regard to strength properties at room and elevated temperature. The creep tests have revealed a significant loss of creep resistance, which was estimated at around 60-70% compared to the as-received condition.
Słowa kluczowe
EN steel HCM12   creep   microstructure   mechanical properties   residual life  
Wydawca Polish Academy of Sciences, Committee of Metallurgy, Institute of Metallurgy and Materials Science
Czasopismo Archives of Metallurgy and Materials
Rocznik 2016
Tom Vol. 61, iss. 2B
Strony 1021--1029
Opis fizyczny Bibliogr. 21 poz.,
autor Zieliński, A.
  • Institute for Ferrous Metallurgy, 12-14 K. Miarki Str., 44-100 Gliwice, Poland,
autor Paszkowska, H.
  • Institute for Ferrous Metallurgy, 12-14 K. Miarki Str., 44-100 Gliwice, Poland
autor Skupień, P.
  • Institute for Ferrous Metallurgy, 12-14 K. Miarki Str., 44-100 Gliwice, Poland
autor Golański, G.
  • Czestochowa University of Technology, Institute of Materials Engineering, 19 Armii Krajowej Av., 42-200 Czestochowa, Poland
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EN The results in this publication were obtained as a part of research co-financed by the National Centre for Research and Development under contract PBS3/B5/42/2015 - Project: "Methodology, evaluation and forecast of operation beyond the analytical operating time of welded joints of pressure compo- nents of power boilers".
PL Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-2ed8766f-1c5d-40e3-a880-2f6423fb2af0
DOI 10.1515/amm-2016-0173