- Tytuł:
- Assessment of Service Life of HCM12 Steel After 100 000 Hrs of Service
- Autorzy:
-
Zieliński, A.
Paszkowska, H.
Skupień, P.
Golański, G. - Powiązania:
- https://bibliotekanauki.pl/articles/355546.pdf
- Data publikacji:
- 2016
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
steel HCM12
creep
microstructure
mechanical properties
residual life - Opis:
- 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.
- Źródło:
-
Archives of Metallurgy and Materials; 2016, 61, 2B; 1021-1029
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł