Influence of High-Temperature Oxidizing Conditions on AlCoCrCuNi High Entropy Alloys with and without Silicon Addition

• Autorzy: Gawel R. , Rogal Ł. , Przybylski K. , Matsuda Kenji

Identyfikatory

DOI

10.24425/amm.2022.137779

• Języki publikacji: EN

Abstrakty

EN

Initial investigations on oxidation behaviour and phase transformations of equimolar AlCoCrCuNi high entropy alloy with and without 1 at.% silicon addition during 24-hr exposure to air atmosphere at 1273 K was carried out in this work. After determining the oxidation kinetics of the samples by means of thermogravimetric analysis, the morphology, chemical and phase compositions of the oxidized alloys were determined by means of scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction analysis. Additional cross-section studies were performed using transmission electron microscopy combined with energy dispersive X-ray spectroscopy and selected area electron diffraction. From all these investigations, it can be concluded that minor silicon addition improves the oxidation kinetics and hinders the formation of an additional FCC structure near the surface of the material.

Słowa kluczowe

EN

high entropy alloy; high temperature oxidation; phase analysis; alloying element

• 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. 2
• Strony: 471--478
• Opis fizyczny: Bibliogr. 20 poz., fot., rys., tab.

Twórcy

autor

Gawel R.

• AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Physical Chemistry and Modelling, Al. Mickiewicza 30, 30 -059 Kraków, Poland

autor

Rogal Ł.

• Polish Academy of Sciences, Institute of Metallurgy and Materials, 25 Reymonta Str., 30-059 Krakow Poland

autor

Przybylski K.

• AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Physical Chemistry and Modelling, Al. Mickiewicza 30, 30 -059 Kraków, Poland

autor

Matsuda Kenji

• University of Toyama, Faculty of Sustainable Design, Department of Materials Design and Engineering, 3190 Gofuku, Toyama 930-8555, Japan

Bibliografia

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Uwagi

1. The authors are grateful for financial support from Iketani Science and Technology foundation, as well as the Center for Advanced Materials Research and International Collaboration (CAMRIC) and University of Toyama.

2. 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).