Mechanical properties of Super 304H steel after long-term ageing at 650 and 700°C

• Autorzy: Zieliński Adam , Sroka Marek , Purzyńska Hanna , Novy Frantisek

Identyfikatory

DOI

10.24425/bpasts.2023.144612

• Języki publikacji: EN

Abstrakty

EN

The paper shows the degradation process of the modern austenitic Super 304H (X10CrNiCuNb18-9-3) steel which was subjected to long-term aging for up to 50,000 h at 650 and 700°C. The investigations include microstructure examination (SEM), identification and analysis of the precipitation process, and mechanical properties tests. The Super 304H steel has a structure characteristic of austenitic steels with visible annealing twins and single primary NbX precipitates. Long-term aging in the steel leads to numerous precipitation processes of M23C6, MX carbides, σ phase, Z phase, and ε-Cu phase. Precipitation processes lead to a decrease in plastic properties and impact energy as well as alloy over aging. Yield strength and tensile strength values after 50,000 h of aging were similar to those as delivered. The yield and tensile strength value strongly depend on the applied aging temperature.

Słowa kluczowe

EN

Super 304H steel; mechanical properties; ageing

PL

stal Super 304H; właściwości mechaniczne; starzenie się

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2023
• Tom: Vol. 71, nr 2
• Strony: art. no. e144612
• Opis fizyczny: Bibliogr. 43 poz., rys., tab.

Twórcy

autor

Zieliński Adam

• Łukasiewicz Research Network – Upper Silesian Institute of Technology, K. Miarki 12-14, 44-100 Gliwice, Poland

autor

Sroka Marek

• Department of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego 18a, 44 100 Gliwice, Poland

• https://orcid.org/0000-0002-8711-5534

autor

Purzyńska Hanna

• Łukasiewicz Research Network – Upper Silesian Institute of Technology, K. Miarki 12-14, 44-100 Gliwice, Poland

autor

Novy Frantisek

• Department of Materials Engineering, University of Zilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).