Protective Cr coatings with CrN/Cr multilayers for zirconium fuel claddings
Sidelev, D. V. 1Ruchkin, S. E. 1Syrtanov, M. S. 1Kashkarov, E. B. 1Shelepov, I. A. 2Malgin, A. G. 2Polunin, K. K. 3Stoykov, K. V. 3Mokrushin, A. A.3
扫码查看
点击上方二维码区域，可以放大扫码查看
作者信息
1. Tomsk Polytech Univ
2. JSC VNIINM
3. LUCH JSC
折叠
Abstract
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.
NSTL
Elsevier