Metal dusting, carburization and diamond deposition on Fe-Cr alloys in CH4-H2 plasma atmospheres

X. Sun; H. T. Ma; L. Z. Yang; M. Sanchez-Pasten; D. Craig Penner; Y. S. Li; Q. Yang

doi:10.1016/j.corsci.2015.06.001

Metal dusting, carburization and diamond deposition on Fe-Cr alloys in CH₄-H₂ plasma atmospheres

X. Sun, H. T. Ma, L. Z. Yang, M. Sanchez-Pasten, D. Craig Penner, Y. S. Li, Q. Yang

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

10 Scopus citations

Abstract

Fe-Cr model alloys (with 20-80wt.% Cr) were exposed to a CH₄-H₂ mixture in a microwave plasma enhanced chemical vapor deposition (CVD) atmosphere. Severe metal dusting and carburization are observed on the low-Cr alloys, meanwhile, diamond cannot nucleate until a graphite intermediate layer has formed on the substrate, which takes a long incubation time. Increasing Cr concentrations in the Fe-Cr alloys promotes the formation of a Cr carbide buffer layer, which inhibits metal dusting and the formation of graphite interlayer. Consequently, diamond nucleation and growth are greatly enhanced, and continuous diamond films with enhanced adhesion are deposited on the Fe-80Cr alloys.

Original language	English
Pages (from-to)	619-625
Number of pages	7
Journal	Corrosion Science
Volume	98
DOIs	https://doi.org/10.1016/j.corsci.2015.06.001
State	Published - 1 Sep 2015
Externally published	Yes

Keywords

CVD
Carburization
Fe-Cr alloys ;Diamond
Metal dusting

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10.1016/j.corsci.2015.06.001

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title = "Metal dusting, carburization and diamond deposition on Fe-Cr alloys in CH4-H2 plasma atmospheres",

abstract = "Fe-Cr model alloys (with 20-80wt.% Cr) were exposed to a CH4-H2 mixture in a microwave plasma enhanced chemical vapor deposition (CVD) atmosphere. Severe metal dusting and carburization are observed on the low-Cr alloys, meanwhile, diamond cannot nucleate until a graphite intermediate layer has formed on the substrate, which takes a long incubation time. Increasing Cr concentrations in the Fe-Cr alloys promotes the formation of a Cr carbide buffer layer, which inhibits metal dusting and the formation of graphite interlayer. Consequently, diamond nucleation and growth are greatly enhanced, and continuous diamond films with enhanced adhesion are deposited on the Fe-80Cr alloys.",

keywords = "CVD, Carburization, Fe-Cr alloys ;Diamond, Metal dusting",

author = "X. Sun and Ma, {H. T.} and Yang, {L. Z.} and M. Sanchez-Pasten and {Craig Penner}, D. and Li, {Y. S.} and Q. Yang",

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doi = "10.1016/j.corsci.2015.06.001",

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TY - JOUR

T1 - Metal dusting, carburization and diamond deposition on Fe-Cr alloys in CH4-H2 plasma atmospheres

AU - Sun, X.

AU - Ma, H. T.

AU - Yang, L. Z.

AU - Sanchez-Pasten, M.

AU - Craig Penner, D.

AU - Li, Y. S.

AU - Yang, Q.

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Fe-Cr model alloys (with 20-80wt.% Cr) were exposed to a CH4-H2 mixture in a microwave plasma enhanced chemical vapor deposition (CVD) atmosphere. Severe metal dusting and carburization are observed on the low-Cr alloys, meanwhile, diamond cannot nucleate until a graphite intermediate layer has formed on the substrate, which takes a long incubation time. Increasing Cr concentrations in the Fe-Cr alloys promotes the formation of a Cr carbide buffer layer, which inhibits metal dusting and the formation of graphite interlayer. Consequently, diamond nucleation and growth are greatly enhanced, and continuous diamond films with enhanced adhesion are deposited on the Fe-80Cr alloys.

AB - Fe-Cr model alloys (with 20-80wt.% Cr) were exposed to a CH4-H2 mixture in a microwave plasma enhanced chemical vapor deposition (CVD) atmosphere. Severe metal dusting and carburization are observed on the low-Cr alloys, meanwhile, diamond cannot nucleate until a graphite intermediate layer has formed on the substrate, which takes a long incubation time. Increasing Cr concentrations in the Fe-Cr alloys promotes the formation of a Cr carbide buffer layer, which inhibits metal dusting and the formation of graphite interlayer. Consequently, diamond nucleation and growth are greatly enhanced, and continuous diamond films with enhanced adhesion are deposited on the Fe-80Cr alloys.

KW - CVD

KW - Carburization

KW - Fe-Cr alloys ;Diamond

KW - Metal dusting

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U2 - 10.1016/j.corsci.2015.06.001

DO - 10.1016/j.corsci.2015.06.001

M3 - Artículo

SN - 0010-938X

VL - 98

SP - 619

EP - 625

JO - Corrosion Science

JF - Corrosion Science

ER -

Metal dusting, carburization and diamond deposition on Fe-Cr alloys in CH₄-H₂ plasma atmospheres

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Keywords

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