Characteristics of changes in properties and structure of X10CrMoVNb9-1 steel due to long-term impact of temperature and stress
PBN-AR
Instytucja
Sieć Badawcza Łukasiewicz - Instytut Metalurgii Żelaza im. Stanisława Staszica
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Archives of Materials Science and Engineering
ISSN
1897-2764
EISSN
Wydawca
International OCSCO World Press
DOI
Rok publikacji
2013
Numer zeszytu
2
Strony od-do
72-81
Numer tomu
60
Identyfikator DOI
Liczba arkuszy
Autorzy
(liczba autorów: 2)
Słowa kluczowe
en
Mechanical properties; Creep test; Structure; Degradation after annealing; Hardness; Impact strength; X10CrMoVNb9-1 (P91) steel
Streszczenia
Język
en
Treść
Purpose: this article presents the results of mechanical and structure testing of X10CrMoVNb9-1 (P91) steel in initial state and after annealing, creep tests and long-term service under creep conditions Design/methodology/approach: The material for investigations was X10CrMoVNb9-1 (P91) steel in the form of two test pieces of tubes with dimensions of Ø355.6x50 mm and Ø325x38 mm in initial state and after 90,000 h service under creep conditions, respectively. The mechanical and structure testing was carried out on material in initial state and after long-term service under creep conditions. The microstructure was observed using scanning electron microscope. Findings: The mechanical, creep and structure testing of steel in initial state has confirmed that the tested steel meets the requirements of PN-EN 10216-2. Long-term annealing as well as hardness and impact strength testing have allowed the influence of long-term impact of temperature and time on properties and structure of X10CrMoVNb9-1 (P91) steel to be evaluated. Practical implications: The presented method can be used for evaluation and qualification of structural changes in power station boiler components operating under creep conditions. Originality/value: The presented results of changes in mechanical properties, structure and precipitation processes are applied to evaluation of the condition of elements for further industrial service.
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
604362