An overview of the oxidation performance of silicide diffusion coatings for vanadium-based alloys for generation IV reactors

N. Chaia; S. Mathieu; T. Cozzika; F. Rouillard; C. Desgranges; J. L. Courouau; C. Petitjean; N. David; M. Vilasi

doi:10.1016/j.corsci.2012.09.031

An overview of the oxidation performance of silicide diffusion coatings for vanadium-based alloys for generation IV reactors

N. Chaia
, S. Mathieu
, T. Cozzika
, F. Rouillard
, C. Desgranges
, J. L. Courouau
, C. Petitjean
, N. David
, M. Vilasi

Research output: Contribution to journal › Article › peer-review

Abstract

This study focuses on the development of new protective coatings for the vanadium-based alloy V-4Cr-4Ti. Halide-activated pack-cementation (HAPC) technique was used to develop V_xSi_y multilayered diffusive silicide coatings. The outer layers (coatings) were formed of VSi₂ doped with 27 at.% Cr or TiSi₂. These compounds exhibited a very low oxidation rate at 650°C, both in air and at a low oxygen pressure (He, 5ppm O₂). The coatings formed mainly of MSi₂ were found to be insensitive to pesting and largely unreactive to liquid sodium (<10ppm O₂) during a 360h compatibility test at 550°C.

Original language	English
Pages (from-to)	285-291
Number of pages	7
Journal	Corrosion Science
Volume	66
DOIs	https://doi.org/10.1016/j.corsci.2012.09.031
Publication status	Published - 1 Jan 2013
Externally published	Yes

Keywords

A. Intermetallics
B. Weight loss
C. High temperature corrosion
C. Oxidation
C. Reactor conditions

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10.1016/j.corsci.2012.09.031

Cite this

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title = "An overview of the oxidation performance of silicide diffusion coatings for vanadium-based alloys for generation IV reactors",

abstract = "This study focuses on the development of new protective coatings for the vanadium-based alloy V-4Cr-4Ti. Halide-activated pack-cementation (HAPC) technique was used to develop VxSiy multilayered diffusive silicide coatings. The outer layers (coatings) were formed of VSi2 doped with 27 at.\% Cr or TiSi2. These compounds exhibited a very low oxidation rate at 650°C, both in air and at a low oxygen pressure (He, 5ppm O2). The coatings formed mainly of MSi2 were found to be insensitive to pesting and largely unreactive to liquid sodium (<10ppm O2) during a 360h compatibility test at 550°C.",

keywords = "A. Intermetallics, B. Weight loss, C. High temperature corrosion, C. Oxidation, C. Reactor conditions",

author = "N. Chaia and S. Mathieu and T. Cozzika and F. Rouillard and C. Desgranges and Courouau, \{J. L.\} and C. Petitjean and N. David and M. Vilasi",

year = "2013",

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doi = "10.1016/j.corsci.2012.09.031",

language = "English",

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pages = "285--291",

journal = "Corrosion Science",

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TY - JOUR

T1 - An overview of the oxidation performance of silicide diffusion coatings for vanadium-based alloys for generation IV reactors

AU - Chaia, N.

AU - Mathieu, S.

AU - Cozzika, T.

AU - Rouillard, F.

AU - Desgranges, C.

AU - Courouau, J. L.

AU - Petitjean, C.

AU - David, N.

AU - Vilasi, M.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - This study focuses on the development of new protective coatings for the vanadium-based alloy V-4Cr-4Ti. Halide-activated pack-cementation (HAPC) technique was used to develop VxSiy multilayered diffusive silicide coatings. The outer layers (coatings) were formed of VSi2 doped with 27 at.% Cr or TiSi2. These compounds exhibited a very low oxidation rate at 650°C, both in air and at a low oxygen pressure (He, 5ppm O2). The coatings formed mainly of MSi2 were found to be insensitive to pesting and largely unreactive to liquid sodium (<10ppm O2) during a 360h compatibility test at 550°C.

AB - This study focuses on the development of new protective coatings for the vanadium-based alloy V-4Cr-4Ti. Halide-activated pack-cementation (HAPC) technique was used to develop VxSiy multilayered diffusive silicide coatings. The outer layers (coatings) were formed of VSi2 doped with 27 at.% Cr or TiSi2. These compounds exhibited a very low oxidation rate at 650°C, both in air and at a low oxygen pressure (He, 5ppm O2). The coatings formed mainly of MSi2 were found to be insensitive to pesting and largely unreactive to liquid sodium (<10ppm O2) during a 360h compatibility test at 550°C.

KW - A. Intermetallics

KW - B. Weight loss

KW - C. High temperature corrosion

KW - C. Oxidation

KW - C. Reactor conditions

UR - https://www.scopus.com/pages/publications/84869493358

U2 - 10.1016/j.corsci.2012.09.031

DO - 10.1016/j.corsci.2012.09.031

M3 - Article

AN - SCOPUS:84869493358

SN - 0010-938X

VL - 66

SP - 285

EP - 291

JO - Corrosion Science

JF - Corrosion Science

ER -

An overview of the oxidation performance of silicide diffusion coatings for vanadium-based alloys for generation IV reactors

Abstract

Keywords

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