1. Synthesis of the Fe–Cr–Al–Zr Surface Alloy with an Amorphous Transition Layer.
- Author
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Markov, A. B., Yakovlev, E. V., Solovyov, A. V., and Slobodyan, M. S.
- Subjects
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DIFFUSION barriers , *AMORPHOUS alloys , *MAGNETRON sputtering , *ZIRCONIUM , *IRON , *ALLOYS - Abstract
A two-layer Fe–Cr–Al–Zr surface alloy has been synthesized on a zirconium substrate by magnetron sputtering and subsequent low-energy high-current electron-beam (LEHCEB) processing. The thicknesses of the top Fe69Cr20Al11 (at.%) relatively large-grained (~1 μm) layer and the transition Fe–Zr–Cr–Al amorphous layer were about 0.7 and 0.6 μm, respectively. In turn, the amorphous layer consisted of two Fe64–54Zr8–22Cr21–17Al8–7 and Fe40–16Zr42–78Cr12–4Al6–2 (at.%) sublayers that differed in both zirconium and iron concentrations in wide ranges and were separated by another nanocrystalline interlayer. The Fe–Cr–Al–Zr surface alloy served as the diffusion barrier preventing the interaction of the zirconium substrate with oxygen from an environment. It was thermally stable up to ≈1173 K. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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