Superhard CrN/MoN films with multilayer architecture
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/57712 |
Resumo: | Main regularities of the formation of microstructure and properties ofmultilayer nanostructured CrN/MoN films with periodically changing architecture of layers were considered. Coatings were fabricated by vacuum-arc evaporation of the cathodes (Arc-PVD) in nitrogen atmosphere (pN was 0.4, 0.09 and 0.03 Pa). CrN and γ-Mo2N nitride phases with fcc lattices and a small volume of metastable MoNx cubic phase were formed in the films at pN = 0.4 Pa. The decrease of pN to 0.09 Pa causes the formation of β-Cr2N hexagonal phase. Preferential crystallographic orientation changes from [311] to [111] and [200] when bias voltage Ub is −20, −150 and −300 V respectively. The nanocrystallites size in coatings with bilayer thickness λ = 44 nm decreases to 5.8 nm. The microdeformation grows from 0.4 to 2.3% when Ub changes to −20 V. Coatings show high hardness of 38–42 GPa and H/E = 0.107. In a couple with results of tribological tests, coatings demonstrate strong wear resistance, which makes them appropriate and promising for industrial applications as protective ones. The effect of deposition conditions (pN, Ub, λ) on composition, structure, hardness, toughness and wear resistance was studied to achieve superior mechanical and physical properties of coatings with long lifetime in harsh environment. |
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Superhard CrN/MoN films with multilayer architectureMultilayersMicrostructurePhase compositionHardnessH/E ratioWearNitridesStructureHard coatingsPlasticity indexEngenharia e Tecnologia::Engenharia dos MateriaisScience & TechnologyMain regularities of the formation of microstructure and properties ofmultilayer nanostructured CrN/MoN films with periodically changing architecture of layers were considered. Coatings were fabricated by vacuum-arc evaporation of the cathodes (Arc-PVD) in nitrogen atmosphere (pN was 0.4, 0.09 and 0.03 Pa). CrN and γ-Mo2N nitride phases with fcc lattices and a small volume of metastable MoNx cubic phase were formed in the films at pN = 0.4 Pa. The decrease of pN to 0.09 Pa causes the formation of β-Cr2N hexagonal phase. Preferential crystallographic orientation changes from [311] to [111] and [200] when bias voltage Ub is −20, −150 and −300 V respectively. The nanocrystallites size in coatings with bilayer thickness λ = 44 nm decreases to 5.8 nm. The microdeformation grows from 0.4 to 2.3% when Ub changes to −20 V. Coatings show high hardness of 38–42 GPa and H/E = 0.107. In a couple with results of tribological tests, coatings demonstrate strong wear resistance, which makes them appropriate and promising for industrial applications as protective ones. The effect of deposition conditions (pN, Ub, λ) on composition, structure, hardness, toughness and wear resistance was studied to achieve superior mechanical and physical properties of coatings with long lifetime in harsh environment.State budget programs of Ukraine, grant numbers 0116U002621, 0115U000682, 0116U006816; SFRH/BD/ 129614/2017; NORTE-01-0145-FEDER-022096info:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoPogrebnjak, A. D.Beresnev, V. M.Bondar, O. V.Postolnyi, B. O.Zaleski, K.Coy, E.Jurga, S.Lisovenko, M. O.Konarski, P.Rebouta, L.Araujo, J. P.2018-092018-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/57712engPogrebnjak, A. D., Beresnev, V. M., Bondar, O. V., Postolnyi, B. O., Zaleski, K., Coy, et. al.(2018). Superhard CrN/MoN coatings with multilayer architecture. Materials & Design, 153, 47-590261-30690264-127510.1016/j.matdes.2018.05.001https://www.sciencedirect.com/science/article/pii/S0264127518303721info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:28:06Zoai:repositorium.sdum.uminho.pt:1822/57712Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:22:50.259908Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Superhard CrN/MoN films with multilayer architecture |
title |
Superhard CrN/MoN films with multilayer architecture |
spellingShingle |
Superhard CrN/MoN films with multilayer architecture Pogrebnjak, A. D. Multilayers Microstructure Phase composition Hardness H/E ratio Wear Nitrides Structure Hard coatings Plasticity index Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
title_short |
Superhard CrN/MoN films with multilayer architecture |
title_full |
Superhard CrN/MoN films with multilayer architecture |
title_fullStr |
Superhard CrN/MoN films with multilayer architecture |
title_full_unstemmed |
Superhard CrN/MoN films with multilayer architecture |
title_sort |
Superhard CrN/MoN films with multilayer architecture |
author |
Pogrebnjak, A. D. |
author_facet |
Pogrebnjak, A. D. Beresnev, V. M. Bondar, O. V. Postolnyi, B. O. Zaleski, K. Coy, E. Jurga, S. Lisovenko, M. O. Konarski, P. Rebouta, L. Araujo, J. P. |
author_role |
author |
author2 |
Beresnev, V. M. Bondar, O. V. Postolnyi, B. O. Zaleski, K. Coy, E. Jurga, S. Lisovenko, M. O. Konarski, P. Rebouta, L. Araujo, J. P. |
author2_role |
author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Pogrebnjak, A. D. Beresnev, V. M. Bondar, O. V. Postolnyi, B. O. Zaleski, K. Coy, E. Jurga, S. Lisovenko, M. O. Konarski, P. Rebouta, L. Araujo, J. P. |
dc.subject.por.fl_str_mv |
Multilayers Microstructure Phase composition Hardness H/E ratio Wear Nitrides Structure Hard coatings Plasticity index Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
topic |
Multilayers Microstructure Phase composition Hardness H/E ratio Wear Nitrides Structure Hard coatings Plasticity index Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
description |
Main regularities of the formation of microstructure and properties ofmultilayer nanostructured CrN/MoN films with periodically changing architecture of layers were considered. Coatings were fabricated by vacuum-arc evaporation of the cathodes (Arc-PVD) in nitrogen atmosphere (pN was 0.4, 0.09 and 0.03 Pa). CrN and γ-Mo2N nitride phases with fcc lattices and a small volume of metastable MoNx cubic phase were formed in the films at pN = 0.4 Pa. The decrease of pN to 0.09 Pa causes the formation of β-Cr2N hexagonal phase. Preferential crystallographic orientation changes from [311] to [111] and [200] when bias voltage Ub is −20, −150 and −300 V respectively. The nanocrystallites size in coatings with bilayer thickness λ = 44 nm decreases to 5.8 nm. The microdeformation grows from 0.4 to 2.3% when Ub changes to −20 V. Coatings show high hardness of 38–42 GPa and H/E = 0.107. In a couple with results of tribological tests, coatings demonstrate strong wear resistance, which makes them appropriate and promising for industrial applications as protective ones. The effect of deposition conditions (pN, Ub, λ) on composition, structure, hardness, toughness and wear resistance was studied to achieve superior mechanical and physical properties of coatings with long lifetime in harsh environment. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09 2018-09-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/57712 |
url |
http://hdl.handle.net/1822/57712 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pogrebnjak, A. D., Beresnev, V. M., Bondar, O. V., Postolnyi, B. O., Zaleski, K., Coy, et. al.(2018). Superhard CrN/MoN coatings with multilayer architecture. Materials & Design, 153, 47-59 0261-3069 0264-1275 10.1016/j.matdes.2018.05.001 https://www.sciencedirect.com/science/article/pii/S0264127518303721 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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