High-Temperature Oxidation of a Zr–1Nb Alloy with a Protective Cr/Ta Coating | Sciact - CRIS-system of Boreskov Institute of Catalysis

High-Temperature Oxidation of a Zr–1Nb Alloy with a Protective Cr/Ta Coating Full article

Journal

Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques
ISSN: 1027-4510 , E-ISSN: 1819-7094

Output data

Year: 2023, Volume: 17, Number: Suppl. 1, Pages: S115-S120 Pages count : 6 DOI: 10.1134/S1027451023070510

Tags

magnetron sputtering, multilayer coatings, zirconium alloy, chromium, tantalum, diffusion barrier, high–temperature oxidation, in situ X-ray diffraction, interdiffusion, corrosion resistance

Authors

Syrtanov M.S. ¹ , Korneev S.P. ¹ , Abdulmenova A.V. ¹ , Lomygin A.D. ¹ , Mishchenko D.D. ²

Affiliations

1	National Research Tomsk Polytechnic University, Tomsk, 634050 Russia
2	Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, Koltsovo, 630559 Russia

The oxidation and interdiffusion mechanisms of a Zr–1Nb zirconium alloy with a Cr/Ta coating have been investigated. Multilayer Cr(8 μm)/Ta(3 μm) coatings were deposited by magnetron sputtering. The coated zirconium alloy samples were oxidized at 1100°C without isothermal exposure and under exposure for 15–60 min. The coating ceased to act as a diffusion barrier and, consequently, began to delaminate at 60 min of oxidation. Studies on the protective properties of the Cr/Ta coatings were carried out using XRD, SEM, and in situ XRD up to 1250°C. The results showed that during the oxidation process, tantalum diffused into both chromium with the formation of the Cr2Ta phase and zirconium. In situ XRD indicated the formation of the Cr2Zr phase during oxidation for 2 min at 1250°C. The thickness of the residual chromium layer in the case of the Cr/Ta coating was greater than that of the single-layer chromium coating. The possibilities of using Cr/Ta as a coating for fuel cladding were considered.

Syrtanov M.S. , Korneev S.P. , Abdulmenova A.V. , Lomygin A.D. , Mishchenko D.D.
High-Temperature Oxidation of a Zr–1Nb Alloy with a Protective Cr/Ta Coating
Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques. 2023. V.17. NSuppl. 1. P.S115-S120. DOI: 10.1134/S1027451023070510 WOS Scopus ANCAN OpenAlex publication_identifier_short.sciact_skif_identifier_type

Submitted:	Apr 25, 2023
Accepted:	Jun 11, 2023

Web of science:	WOS:001176095900012
Scopus:	2-s2.0-85186766857
Chemical Abstracts:	2024:505853
Chemical Abstracts (print):	186:167806
OpenAlex:	W4392410196
publication_identifier.sciact_skif_identifier_type:	1847

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