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

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

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 + N2 atmosphere. The mechanical properties of the as-deposited coatings were measured by scratch testing and tribometry. A com...

Full description

Saved in:
Bibliographic Details
Published in:Surface & coatings technology Vol. 433; p. 128131
Main Authors: 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.
Format: Journal Article
Language:English
Published: Lausanne Elsevier B.V 15-03-2022
Elsevier BV
Subjects:
Accident tolerant fuel
Cathode sputtering
Chromium
Chromium nitride
Comparative studies
Heat resistant alloys
High temperature
Interdiffusion
Magnetron sputtering
Mechanical properties
Multilayer coating
Multilayers
Oxidation resistance
Protective coatings
Thermal cycling
Thickness
Zirconium alloy
Zirconium base alloys
Chromium
Zirconium alloy
Oxidation resistance
Magnetron sputtering
Multilayer coating
Accident tolerant fuel
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 + N2 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 °С) and high-temperature (1200–1400 °С) 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. •Increase in wear resistance of Cr-coated Zr alloy•CrN/Cr multilayers use as a barrier layer for CrZr interdiffusion•Role of thickness layer of CrN/Cr multilayers on cracking resistance•Nitrogen-stabilization of α-Zr phase underneath Cr coating•Deceleration of CrZr interdiffusion due to α-Zr(N) layer
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2022.128131