In-situ alloying of TiC-FeCr cermets in manganese vapour

Conventional vacuum sintering is, in general, inappropriate for producing manganese containing cermets because high vapour pressure combined with high sintering temperature of cermets (1400â1600 Â°C) causes considerable Mn loss through sublimation and evaporation. Sintering in Mn-rich microatmospher...

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Autores principales:	Kristjan Juhani, Märt Kolnes, Jakob Kübarsepp, Marek Tarraste, Mart Viljus
Formato:	article
Lenguaje:	EN
Publicado:	Estonian Academy Publishers 2021
Materias:	tic cermets alternative binder sintering environment. Science Q
Acceso en línea:	https://doaj.org/article/6f0f0a22330741b6b3bfda3ad6722efe
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spelling	oai:doaj.org-article:6f0f0a22330741b6b3bfda3ad6722efe2021-11-17T17:48:21ZIn-situ alloying of TiC-FeCr cermets in manganese vapour1736-60461736-753010.3176/proc.2021.4.22https://doaj.org/article/6f0f0a22330741b6b3bfda3ad6722efe2021-11-01T00:00:00Zhttps://kirj.ee/wp-content/plugins/kirj/pub/proc-4-2021-533-539_20211112172155.pdfhttps://doaj.org/toc/1736-6046https://doaj.org/toc/1736-7530Conventional vacuum sintering is, in general, inappropriate for producing manganese containing cermets because high vapour pressure combined with high sintering temperature of cermets (1400â1600 Â°C) causes considerable Mn loss through sublimation and evaporation. Sintering in Mn-rich microatmosphere does not only prevent Mn loss but also enables additional in-situ alloying of the binder phase during sintering. We studied alloying of TiC-based cermets bonded with high chromium steels, especially TiC-FeCr and TiC-FeCrMn, during sintering in Mn-rich atmosphere. Sintering in manganese vapour was detected to increase sinterability of the cermets, resulting in the formation of a ~1 mm thick Mn-rich surface layer with homogeneous microstructure while the core region of the material remained unaffected. This surface region of sintered TiC-FeCr and TiC-FeCrMn cermets exhibited increased Mn content and competitive mechanical properties â hardness of ~1150 HV30 and indentation fracture toughness of ~12 MPaÂ·m1/2.Kristjan JuhaniMärt KolnesJakob KübarseppMarek TarrasteMart ViljusEstonian Academy Publishersarticletic cermetsalternative bindersintering environment.ScienceQENProceedings of the Estonian Academy of Sciences, Vol 70, Iss 4, Pp 533-539 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	tic cermets alternative binder sintering environment. Science Q
spellingShingle	tic cermets alternative binder sintering environment. Science Q Kristjan Juhani Märt Kolnes Jakob Kübarsepp Marek Tarraste Mart Viljus In-situ alloying of TiC-FeCr cermets in manganese vapour
description	Conventional vacuum sintering is, in general, inappropriate for producing manganese containing cermets because high vapour pressure combined with high sintering temperature of cermets (1400â1600 Â°C) causes considerable Mn loss through sublimation and evaporation. Sintering in Mn-rich microatmosphere does not only prevent Mn loss but also enables additional in-situ alloying of the binder phase during sintering. We studied alloying of TiC-based cermets bonded with high chromium steels, especially TiC-FeCr and TiC-FeCrMn, during sintering in Mn-rich atmosphere. Sintering in manganese vapour was detected to increase sinterability of the cermets, resulting in the formation of a ~1 mm thick Mn-rich surface layer with homogeneous microstructure while the core region of the material remained unaffected. This surface region of sintered TiC-FeCr and TiC-FeCrMn cermets exhibited increased Mn content and competitive mechanical properties â hardness of ~1150 HV30 and indentation fracture toughness of ~12 MPaÂ·m1/2.
format	article
author	Kristjan Juhani Märt Kolnes Jakob Kübarsepp Marek Tarraste Mart Viljus
author_facet	Kristjan Juhani Märt Kolnes Jakob Kübarsepp Marek Tarraste Mart Viljus
author_sort	Kristjan Juhani
title	In-situ alloying of TiC-FeCr cermets in manganese vapour
title_short	In-situ alloying of TiC-FeCr cermets in manganese vapour
title_full	In-situ alloying of TiC-FeCr cermets in manganese vapour
title_fullStr	In-situ alloying of TiC-FeCr cermets in manganese vapour
title_full_unstemmed	In-situ alloying of TiC-FeCr cermets in manganese vapour
title_sort	in-situ alloying of tic-fecr cermets in manganese vapour
publisher	Estonian Academy Publishers
publishDate	2021
url	https://doaj.org/article/6f0f0a22330741b6b3bfda3ad6722efe
work_keys_str_mv	AT kristjanjuhani insitualloyingofticfecrcermetsinmanganesevapour AT martkolnes insitualloyingofticfecrcermetsinmanganesevapour AT jakobkubarsepp insitualloyingofticfecrcermetsinmanganesevapour AT marektarraste insitualloyingofticfecrcermetsinmanganesevapour AT martviljus insitualloyingofticfecrcermetsinmanganesevapour
_version_	1718425361533894656

In-situ alloying of TiC-FeCr cermets in manganese vapour

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