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Production and comparative analysis of the diffusion barrier properties of Ni-W and Ni-Re coatings.

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Title: Production and comparative analysis of the diffusion barrier properties of Ni-W and Ni-Re coatings.
Authors: Aksenov, A. N.1 (AUTHOR) 9123975423@mail.ru, Burdina, K. P.2 (AUTHOR) burdinakp@tyuiu.ru, Andreev, O. I.1 (AUTHOR) o.andreev@tmotor.ru, Kirpichnikova, E. P.1 (AUTHOR) kirpichnikova.elizaveta@mail.ru
Source: Metallurgist. Mar2026, Vol. 69 Issue 11, p1738-1745. 8p.
Subjects: Diffusion barriers, Protective coatings, Heat resistant alloys, Diffusion coatings, Heat treatment, Coating processes, Annealing of metals, Electroplating
Abstract: This article examines international and domestic experience in applying diffusion barriers made of refractory heavy elements (e.g., Ir, Re, and W) on heat-resistant nickel alloys to reduce diffusion fluxes at the substrate-coating interface. A procedure for producing experimental samples of Re/NiAl and W/NiAl compositions using electrochemical and powder-based coating techniques, which was implemented at the Industrial University of Tyumen, is presented. Comparative tests of the obtained diffusion barriers were conducted under high-temperature and homogenizing vacuum annealing conditions (1050 ± 10 °C and 1170 ± 10 °C). Experimental results indicate that the Ni‑W diffusion barrier is inferior in stability to the Ni-Re barrier, as evidenced by significant contamination of the surface layer of the W/NiAl coating by substrate elements. The main parameters and characteristics of W and Re that most significantly influence their diffusivity are discussed. Conclusions are drawn regarding the feasibility of using coatings with a Ni-Re diffusion barrier on hot gas path components of land-based gas turbines. [ABSTRACT FROM AUTHOR]
Copyright of Metallurgist is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 195366420
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  Data: Production and comparative analysis of the diffusion barrier properties of Ni-W and Ni-Re coatings.
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  Data: <searchLink fieldCode="AR" term="%22Aksenov%2C+A%2E+N%2E%22">Aksenov, A. N.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 9123975423@mail.ru</i><br /><searchLink fieldCode="AR" term="%22Burdina%2C+K%2E+P%2E%22">Burdina, K. P.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> burdinakp@tyuiu.ru</i><br /><searchLink fieldCode="AR" term="%22Andreev%2C+O%2E+I%2E%22">Andreev, O. I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> o.andreev@tmotor.ru</i><br /><searchLink fieldCode="AR" term="%22Kirpichnikova%2C+E%2E+P%2E%22">Kirpichnikova, E. P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> kirpichnikova.elizaveta@mail.ru</i>
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  Data: <searchLink fieldCode="JN" term="%22Metallurgist%22">Metallurgist</searchLink>. Mar2026, Vol. 69 Issue 11, p1738-1745. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Diffusion+barriers%22">Diffusion barriers</searchLink><br /><searchLink fieldCode="DE" term="%22Protective+coatings%22">Protective coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+resistant+alloys%22">Heat resistant alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Diffusion+coatings%22">Diffusion coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Coating+processes%22">Coating processes</searchLink><br /><searchLink fieldCode="DE" term="%22Annealing+of+metals%22">Annealing of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Electroplating%22">Electroplating</searchLink>
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  Data: This article examines international and domestic experience in applying diffusion barriers made of refractory heavy elements (e.g., Ir, Re, and W) on heat-resistant nickel alloys to reduce diffusion fluxes at the substrate-coating interface. A procedure for producing experimental samples of Re/NiAl and W/NiAl compositions using electrochemical and powder-based coating techniques, which was implemented at the Industrial University of Tyumen, is presented. Comparative tests of the obtained diffusion barriers were conducted under high-temperature and homogenizing vacuum annealing conditions (1050 ± 10 °C and 1170 ± 10 °C). Experimental results indicate that the Ni‑W diffusion barrier is inferior in stability to the Ni-Re barrier, as evidenced by significant contamination of the surface layer of the W/NiAl coating by substrate elements. The main parameters and characteristics of W and Re that most significantly influence their diffusivity are discussed. Conclusions are drawn regarding the feasibility of using coatings with a Ni-Re diffusion barrier on hot gas path components of land-based gas turbines. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Metallurgist is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11015-026-02101-y
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        Text: English
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        Type: general
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      – SubjectFull: Heat resistant alloys
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      – SubjectFull: Diffusion coatings
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      – SubjectFull: Annealing of metals
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      – SubjectFull: Electroplating
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      – TitleFull: Production and comparative analysis of the diffusion barrier properties of Ni-W and Ni-Re coatings.
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              Text: Mar2026
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              Y: 2026
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