Formation of Silicide and Silicide-Aluminide Coatings on Molybdenum Alloy during Slurry Cementation Process: Influence of Slurry Volume

New slurry cementation method was used to produce silicide and silicide-aluminide protective coatings on molybdenum alloy (TZM). The slurry cementation processes were carried out at a temperature of 1000 °C in different time intervals with the use of varied slurry mass values. The microstructure and...

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Autores principales:	Agnieszka Elżbieta Kochmańska, Aneta Jarlaczyńska, Jolanta Baranowska
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	slurry method silicide coatings aluminide coatings molybdenum alloy Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/acf6d3e88991440da13460876065d886
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spelling	oai:doaj.org-article:acf6d3e88991440da13460876065d8862021-11-25T18:14:54ZFormation of Silicide and Silicide-Aluminide Coatings on Molybdenum Alloy during Slurry Cementation Process: Influence of Slurry Volume10.3390/ma142269401996-1944https://doaj.org/article/acf6d3e88991440da13460876065d8862021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6940https://doaj.org/toc/1996-1944New slurry cementation method was used to produce silicide and silicide-aluminide protective coatings on molybdenum alloy (TZM). The slurry cementation processes were carried out at a temperature of 1000 °C in different time intervals with the use of varied slurry mass values. The microstructure and thickness of the coatings were studied by means of scanning microscopy. Chemical composition using X-ray microanalysis and phase composition using X-ray diffraction were also investigated. Coating microhardness was determined. The obtained coatings had a multilayer structure. Phases from the Al-Si-Mo system were observed in silicide-aluminide coatings and phases from the Si-Mo system were observed in silicide coatings. The microhardness strongly depended on the phase composition of the coating. It was demonstrated that slurry mass values had an important influence on the morphology and growth kinetics of silicide-aluminide coatings. In the case of a small amount of the slurry, the deficiency of alloying elements occurring during long processes reduces growth kinetics and can lead to void formation in the structure of silicide-aluminide coatings.Agnieszka Elżbieta KochmańskaAneta JarlaczyńskaJolanta BaranowskaMDPI AGarticleslurry methodsilicide coatingsaluminide coatingsmolybdenum alloyTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6940, p 6940 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	slurry method silicide coatings aluminide coatings molybdenum alloy Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	slurry method silicide coatings aluminide coatings molybdenum alloy Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Agnieszka Elżbieta Kochmańska Aneta Jarlaczyńska Jolanta Baranowska Formation of Silicide and Silicide-Aluminide Coatings on Molybdenum Alloy during Slurry Cementation Process: Influence of Slurry Volume
description	New slurry cementation method was used to produce silicide and silicide-aluminide protective coatings on molybdenum alloy (TZM). The slurry cementation processes were carried out at a temperature of 1000 °C in different time intervals with the use of varied slurry mass values. The microstructure and thickness of the coatings were studied by means of scanning microscopy. Chemical composition using X-ray microanalysis and phase composition using X-ray diffraction were also investigated. Coating microhardness was determined. The obtained coatings had a multilayer structure. Phases from the Al-Si-Mo system were observed in silicide-aluminide coatings and phases from the Si-Mo system were observed in silicide coatings. The microhardness strongly depended on the phase composition of the coating. It was demonstrated that slurry mass values had an important influence on the morphology and growth kinetics of silicide-aluminide coatings. In the case of a small amount of the slurry, the deficiency of alloying elements occurring during long processes reduces growth kinetics and can lead to void formation in the structure of silicide-aluminide coatings.
format	article
author	Agnieszka Elżbieta Kochmańska Aneta Jarlaczyńska Jolanta Baranowska
author_facet	Agnieszka Elżbieta Kochmańska Aneta Jarlaczyńska Jolanta Baranowska
author_sort	Agnieszka Elżbieta Kochmańska
title	Formation of Silicide and Silicide-Aluminide Coatings on Molybdenum Alloy during Slurry Cementation Process: Influence of Slurry Volume
title_short	Formation of Silicide and Silicide-Aluminide Coatings on Molybdenum Alloy during Slurry Cementation Process: Influence of Slurry Volume
title_full	Formation of Silicide and Silicide-Aluminide Coatings on Molybdenum Alloy during Slurry Cementation Process: Influence of Slurry Volume
title_fullStr	Formation of Silicide and Silicide-Aluminide Coatings on Molybdenum Alloy during Slurry Cementation Process: Influence of Slurry Volume
title_full_unstemmed	Formation of Silicide and Silicide-Aluminide Coatings on Molybdenum Alloy during Slurry Cementation Process: Influence of Slurry Volume
title_sort	formation of silicide and silicide-aluminide coatings on molybdenum alloy during slurry cementation process: influence of slurry volume
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/acf6d3e88991440da13460876065d886
work_keys_str_mv	AT agnieszkaelzbietakochmanska formationofsilicideandsilicidealuminidecoatingsonmolybdenumalloyduringslurrycementationprocessinfluenceofslurryvolume AT anetajarlaczynska formationofsilicideandsilicidealuminidecoatingsonmolybdenumalloyduringslurrycementationprocessinfluenceofslurryvolume AT jolantabaranowska formationofsilicideandsilicidealuminidecoatingsonmolybdenumalloyduringslurrycementationprocessinfluenceofslurryvolume
_version_	1718411458301132800

Formation of Silicide and Silicide-Aluminide Coatings on Molybdenum Alloy during Slurry Cementation Process: Influence of Slurry Volume

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