首页|Protective Cr coatings with CrN/Cr multilayers for zirconium fuel claddings

Protective Cr coatings with CrN/Cr multilayers for zirconium fuel claddings

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  • NSTL
  • Elsevier
Cr coatings with CrN/Cr multilayers with a layer thickness of 100, 250 and 750 nm were deposited by a multi cathode magnetron sputtering on E110 zirconium alloy in Ar and Ar + N-2 atmosphere. The mechanical properties of the as-deposited coatings were measured by scratch testing and tribometry. A comparative study of crack and oxidation resistance of the Cr-coated E110 alloy was performed under thermal cycling (1000 degrees C) and high-temperature (1200-1400 degrees C) steam oxidation conditions. The influence of the CrN/Cr multilayers and their thickness on the mechanical properties and oxidation resistance of the coated E110 alloy is discussed. It is found that the CrN/Cr multilayers can limit interdiffusion between the coating and E110 alloy at high temperatures only for a short period.

Magnetron sputteringChromiumMultilayer coatingZirconium alloyOxidation resistanceAccident tolerant fuelDIFFUSIONOXIDATIONALLOYS

Sidelev, D. V.、Ruchkin, S. E.、Syrtanov, M. S.、Kashkarov, E. B.、Shelepov, I. A.、Malgin, A. G.、Polunin, K. K.、Stoykov, K. V.、Mokrushin, A. A.

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Tomsk Polytech Univ

JSC VNIINM

LUCH JSC

2022

10.1016/j.surfcoat.2022.128131

Surface & Coatings Technology

Surface & Coatings Technology

ISTP
ISSN：0257-8972
年,卷(期)：2022.433
  • 10
  • 36