Influence of the Dispersion Hardening with Nanooxides on the Corrosion Resistance of High-Entropy Alloys of the Cr–Fe–Mn–Ni System in Lead Melts

We study the corrosion resistance of high-entropy alloys of the Cr–Fe–Mn–Ni system in lead melts at 480°С in testing for up to 1000 h. It is shown that the compatibility of these alloys with melts is determined by the processes of dissolution of chromium, nickel, and manganese in lead and the diffus...

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Veröffentlicht in:	Materials science (New York, N.Y.) N.Y.), 2020, Vol.55 (4), p.529-535
Hauptverfasser:	Fedirko, V. М., Voevodin, V. М., Velykodnyi, О. М., Тykhonovskyi, М. А., Kukhar, І. S., Mel’nyk, Kh. R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloy systems Alloys Building materials Characterization and Evaluation of Materials Chemistry and Materials Science Chromium Corrosion and anti-corrosives Corrosion resistance Corrosion resistant alloys Corrosion tests Dispersion hardening alloys High entropy alloys Iron Manganese Materials Science Melts Nickel Nuclear energy Oxides Radiation hardening Radiation tolerance Solid Mechanics Structural Materials Yttrium oxide Zirconium dioxide
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Zusammenfassung:	We study the corrosion resistance of high-entropy alloys of the Cr–Fe–Mn–Ni system in lead melts at 480°С in testing for up to 1000 h. It is shown that the compatibility of these alloys with melts is determined by the processes of dissolution of chromium, nickel, and manganese in lead and the diffusion of oxygen from the melt. It is demonstrated that the dispersion hardening with radiation-resistant oxides Y 2 O 3 and ZrO 2 strongly increases their corrosion resistance.
ISSN:	1068-820X 1573-885X
DOI:	10.1007/s11003-020-00335-y