Material properties and structure of thick-walled elements made of steel 7CrMoVTiB10-10 after long-term annealing

• Autorzy: Zieliński A. , Dobrzański J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Condition assessment of material and welded joints with regard to required utility properties of low-alloy steel for operation at elevated temperature. Design/methodology/approach: The structural and mechanical testing of parent material and welded joint at room and elevated temperature after annealing at 550°C and 600°C for 30,000 h was carried out. Findings: The effect of temperature and duration of long-term annealing on mechanical properties, hardness and structure of tested material and welded joint was determined. Practical implications: The presented method can be used for evaluation and qualification of structural changes in power station boiler components operating in creep conditions. Originality/value: The presented results of changes in the mechanical properties, structure and in the precipitation processes are applied to evaluation the condition of the elements in further industrial service.

Słowa kluczowe

EN

structure; degradation; hardness; creep; T24 steel

PL

struktura; degradacja; twardość; pełzanie; stal T24

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2012
• Tom: Vol. 58, nr 1
• Strony: 5--12

Twórcy

autor

Zieliński A.

• Institute for Ferrous Metallurgy, ul. K. Miarki 12, 44-100 Gliwice, Poland

autor

Dobrzański J.

Bibliografia

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