Influence of Al content on diamond nucleation and growth on Fe-Al alloys in CH4-H2plasma atmosphere

T. J. Pan; F. Ye; X. J. Li; L. L. He; M. Sanchez-Pasten; R. F. Feng; Y. S. Li; Q. Yang

doi:10.1016/j.jallcom.2016.07.192

Influence of Al content on diamond nucleation and growth on Fe-Al alloys in CH₄-H₂plasma atmosphere

T. J. Pan, F. Ye, X. J. Li, L. L. He, M. Sanchez-Pasten, R. F. Feng, Y. S. Li, Q. Yang

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

5 Citas (Scopus)

Resumen

Fe-Al alloys with different Al contents have been exposed to a microwave plasma activated CH₄-H₂gas mixture at 670 °C. An intermediate graphite layer formed on Fe-10Al substrate retarded diamond nucleation and deteriorated the interfacial adhesion, and severe metal dusting and carburization occurred. Diamond nucleation on Fe-20Al was enhanced by inhibited graphitization and cementite formation. Only Fe3AlCx-type precipitates were observed. On Fe-27Al and Fe-40Al alloys, graphitization and substrate carburization were completely prevented, producing enhanced nucleation and interfacial adhesion of diamond. The improved carburization resistance and diamond deposition with increasing Al contents is closely related to the formation of an alumina-rich layer on the alloy surface.

Idioma original	Inglés
Páginas (desde-hasta)	460-467
Número de páginas	8
Publicación	Journal of Alloys and Compounds
Volumen	688
DOI	https://doi.org/10.1016/j.jallcom.2016.07.192
Estado	Publicada - 2016
Publicado de forma externa	Sí

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title = "Influence of Al content on diamond nucleation and growth on Fe-Al alloys in CH4-H2plasma atmosphere",

abstract = "Fe-Al alloys with different Al contents have been exposed to a microwave plasma activated CH4-H2gas mixture at 670 °C. An intermediate graphite layer formed on Fe-10Al substrate retarded diamond nucleation and deteriorated the interfacial adhesion, and severe metal dusting and carburization occurred. Diamond nucleation on Fe-20Al was enhanced by inhibited graphitization and cementite formation. Only Fe3AlCx-type precipitates were observed. On Fe-27Al and Fe-40Al alloys, graphitization and substrate carburization were completely prevented, producing enhanced nucleation and interfacial adhesion of diamond. The improved carburization resistance and diamond deposition with increasing Al contents is closely related to the formation of an alumina-rich layer on the alloy surface.",

keywords = "Alloy, Carburization, Interfaces, Oxidation, Raman spectroscopy, XRD",

author = "Pan, {T. J.} and F. Ye and Li, {X. J.} and He, {L. L.} and M. Sanchez-Pasten and Feng, {R. F.} and Li, {Y. S.} and Q. Yang",

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year = "2016",

doi = "10.1016/j.jallcom.2016.07.192",

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T1 - Influence of Al content on diamond nucleation and growth on Fe-Al alloys in CH4-H2plasma atmosphere

AU - Pan, T. J.

AU - Ye, F.

AU - Li, X. J.

AU - He, L. L.

AU - Sanchez-Pasten, M.

AU - Feng, R. F.

AU - Li, Y. S.

AU - Yang, Q.

PY - 2016

Y1 - 2016

N2 - Fe-Al alloys with different Al contents have been exposed to a microwave plasma activated CH4-H2gas mixture at 670 °C. An intermediate graphite layer formed on Fe-10Al substrate retarded diamond nucleation and deteriorated the interfacial adhesion, and severe metal dusting and carburization occurred. Diamond nucleation on Fe-20Al was enhanced by inhibited graphitization and cementite formation. Only Fe3AlCx-type precipitates were observed. On Fe-27Al and Fe-40Al alloys, graphitization and substrate carburization were completely prevented, producing enhanced nucleation and interfacial adhesion of diamond. The improved carburization resistance and diamond deposition with increasing Al contents is closely related to the formation of an alumina-rich layer on the alloy surface.

AB - Fe-Al alloys with different Al contents have been exposed to a microwave plasma activated CH4-H2gas mixture at 670 °C. An intermediate graphite layer formed on Fe-10Al substrate retarded diamond nucleation and deteriorated the interfacial adhesion, and severe metal dusting and carburization occurred. Diamond nucleation on Fe-20Al was enhanced by inhibited graphitization and cementite formation. Only Fe3AlCx-type precipitates were observed. On Fe-27Al and Fe-40Al alloys, graphitization and substrate carburization were completely prevented, producing enhanced nucleation and interfacial adhesion of diamond. The improved carburization resistance and diamond deposition with increasing Al contents is closely related to the formation of an alumina-rich layer on the alloy surface.

KW - Alloy

KW - Carburization

KW - Interfaces

KW - Oxidation

KW - Raman spectroscopy

KW - XRD

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DO - 10.1016/j.jallcom.2016.07.192

M3 - Artículo

SN - 0925-8388

VL - 688

SP - 460

EP - 467

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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