The Microstructural Evolution of the Welded Joint of Super 304H Stainless Steel after 1000 Hours of Ageing at 700 and 750°C

• Autorzy: Puszczało Tomasz , Purzyńska Hanna , Sroka Marek , Sówka Karol , Zieliński Adam

Identyfikatory

DOI

10.24425/amm.2024.150947

• Języki publikacji: EN

Abstrakty

EN

This study presents the results of microstructure and hardness tests of a homogenous welded joint made of Super 304H stainless steel after 1000 h of ageing at the temperature of 700 and 750°C. Super 304H steel is commonly used for high-pressure elements of modern power units for supercritical steam parameters. The article compares hardness with the microstructure images in the initial state and after ageing. The microstructure tests were carried out based on scanning microscopy, while the hardness tests were carried out on a stationary hardness tester in the HV10 scale. An increase in hardness after ageing was observed, which is directly related to the initiated precipitation process, both in the weld and base materials.

Słowa kluczowe

EN

steel super 304H; microstructure; 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: 2024
• Tom: Vol. 69, iss. 3
• Strony: 1241--1244
• Opis fizyczny: Bibliogr. 16 poz., fot., rys., tab.

Twórcy

autor

Puszczało Tomasz

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

• https://orcid.org/0000-0003-2925-1818

autor

Purzyńska Hanna

• Łukasiewicz Research Network

• https://orcid.org/0000-0002-7936-9999

autor

Sroka Marek

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

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

autor

Sówka Karol

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

• https://orcid.org/0000-0002-0709-9870

autor

Zieliński Adam

• Łukasiewicz Research Network

• https://orcid.org/0000-0003-1205-5482

Bibliografia

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