Structure of 22Cr25NiWCoCu Austenitic Stainless Steel After Ageing

• Autorzy: Sroka Marek , Zieliński A. , Puszczało T. , Sówka K. , Hadzima B.

Identyfikatory

DOI

10.24425/amm.2022.137486

• Języki publikacji: EN

Abstrakty

EN

The 22Cr25NiWCoCu austenitic stainless steel was developed by AB Sandvik Material Technology in Sweden. Due to its high creep strength and good corrosion resistance, this material is well suited for use in superheaters in advanced coal-fired power boilers as well as in other types of steam boilers using various types of fuel. The examined material was subject to long-term ageing for the time of annealing up to 20 000 h at 700 and 750°C. Precipitation processes and microstructure stability as-received and after ageing were investigated. Examination of the microstructure was conducted using scanning electron microscopy. The identification of secondary phases was carried out by X-ray phase composition. Using the results of the investigations of precipitation processes in the microstructure, both within the grains and at the grain boundaries, their statistical analysis was carried out. To illustrate this impact, the following parameters were used: surface area and equivalent diameter of precipitates. Based on the surface area measurements, the percentage of the phase in the reviewed photo’s total area was calculated.

Słowa kluczowe

EN

22Cr25NiWCoCu steel; microstructure; precipitates; ageing

• 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: 2022
• Tom: Vol. 67, iss. 1
• Strony: 175--180
• Opis fizyczny: Bibliogr. 27 poz., fot., rys., tab.

Twórcy

autor

Sroka Marek

• Silesian University of Technology, Department of Engineering Materials and Biomaterials, S. Konarskiego 18A, 44-100 Gliwice, Poland

autor

Zieliński A.

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

autor

Puszczało T.

• Silesian University of Technology, Department of Engineering Materials and Biomaterials, S. Konarskiego 18A, 44-100 Gliwice, Poland
• ZRE, ul. Gen. Jankego 13, 40-615 Katowice, Poland

autor

Sówka K.

• Silesian University of Technology, Department of Engineering Materials and Biomaterials, S. Konarskiego 18A, 44-100 Gliwice, Poland
• ZRE, ul. Gen. Jankego 13, 40-615 Katowice, Poland

autor

Hadzima B.

• University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).