Changes In Properties and Microstructure of High-Chromium 9-12%Cr Steels Due to Long-Term Exposure at Elevated Temperature

• Autorzy: Zieliński A. , Dobrzański J. , Purzyńska H. , Golański G.

Identyfikatory

DOI

10.1515/amm-2016-0163

• Języki publikacji: EN

Abstrakty

EN

This paper presents the characteristics of the performance of P91 (X10CrMoVNb9-1), P92 (X10CrWMoVNb9-2) and VM12 (X12CrCoWVNb12-2-2) steels used for condition assessment of the pressure components of boilers with supercritical steam parameters. Studies on the mechanical properties, microstructure tests using scanning and transmission electron microscopy, and X-ray analysis of the phase composition of precipitates were performed for selected steels in the as-received condition and after long-term annealing. These steel characteristics are used for the evaluation of the microstructural changes and mechanical properties of the material of components after long-term service. The result of this study is the database of material characteristics representing the mechanical properties related to the microstructure analysis and it can be used for diagnosis of the components of pressure parts of power boilers.

Słowa kluczowe

EN

steel P91; P92; VM12; microstructure; mechanical properties; long-term annealing

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2016
• Tom: Vol. 61, iss. 2B
• Strony: 957--964
• Opis fizyczny: Bibliogr. 31 poz., tab., rys.

Twórcy

autor

Zieliński A.

• Institute for Ferrous Metallurgy, 12-14 K. Miarki Str., 44-100 Gliwice, Poland

autor

Dobrzański J.

• Institute for Ferrous Metallurgy, 12-14 K. Miarki Str., 44-100 Gliwice, Poland

autor

Purzyńska H.

• Institute for Ferrous Metallurgy, 12-14 K. Miarki Str., 44-100 Gliwice, Poland

autor

Golański G.

• Częstochowa University of Technology, Institute of Materials Engineering, 19 Armii Krajowej Av., 42-200 Częstochowa, Poland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę