Properties of coatings of the Al–Cr–Fe–Co–Ni–Cu–V high entropy alloy produced by the magnetron sputtering

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• 作者：L. R. Shaginyan ; V. F. Gorban' ; N. A. Krapivka…
• 关键词：alloys ; coatings ; sputtering ; diffraction of electrons ; scanning electron microscopy ; mechanical properties
• 刊名：Journal of Superhard Materials
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：38
• 期：1
• 页码：25-33
• 全文大小：2,628 KB
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• 作者单位：L. R. Shaginyan (1)
  V. F. Gorban’ (1)
  N. A. Krapivka (1)
  S. A. Firstov (1)
  I. F. Kopylov (1)
  
  1. Frantsevich Institute for Materials Science Problems, National Academy of Sciences of Ukraine, vul. Krzhizhanovs’kogo 3, Kiev, 03680, Ukraine
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Russian Library of Science
  
• 出版者：Allerton Press, Inc. distributed exclusively by Springer Science+Business Media LLC
• ISSN：1934-9408

文摘

It has been found that coatings from an Al–Fe–Co–Ni–Cu–Cr–V high entropy equiatomic alloy produced by the magnetron sputtering have nanocrystalline microstructures, are textured, and present a solid two-phase solution, which crystallizes in the bcc (a = 2.91 Å) and fcc (a = 3.65 Å) phases. The ion bombardment of a growing coating caused by the bias voltage (0–(–200) V), which has been applied to the substrate, decreases the growth rate of a condensate and affects its composition and structure. It has been shown that the composition of coatings deposited without an ion bombardment coincides with the target composition, whereas an increase of the ion bombardment intensity leads to the depletion of the coating composition in Al, Cu, and Ni and increase the microhardness. The anisotropy of the coating produced has been revealed.