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STRUCTURAL AND CHEMICAL MICROINHOMOGENEITY OF THE HIGH-ENTROPY TiVZrNbHfTa COATING

V.Gorban,
 
N.Danilenko,
 
N.Krapivka,
 
S.Firstov
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2019, #07/08
http://www.materials.kiev.ua/article/2865

Abstract

The structural and chemical microinhomogeneity of the high-entropy TiVZrNbHfTa coating is studied. Electron microprobe analysis shows that the concentration of elements changes within 10 at.% at a distance of several nanometers. The concentration of (s + d) electrons remains constant. High-resolution electron microscopy used to examine the fine structure found clusters with the size close to the ‘periodicity’ of the chemical inhomogeneity.


ANALYTICAL ELECTRON MICROSCOPY, CHEMICAL INHOMOGENEITY, CLUSTER, HIGH-ENTROPY COATINGS

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