About: Optimatization of the Microstructure of the Low Alloy Structural Steel Using a Rare Earth Metal

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.comat.cz/files/proceedings/19/reports/3352.pdf
Description	A general trend in steelmaking industry is to increase strength, resistance to brittle fracture and fatigue properties of steel products at favorable price. Achieving fine-grained microstructure during austenite to ferrite transformation is a basic prerequisite to improve the mechanical properties. The desired transformation can be achieved in several ways one of which is the use of small non-metallic inclusions as heterogenous nucleation sites during solidification of steel. A great attention is focused on this concept in recent years. Rare earth metals are suitable for the formation of small inclusions similarly as in the case of conventional microalloying elements such as niobium, titanium, vanadium and other. Rare earth metals have a high affinity to oxygen and sulfur. The paper deals with the optimization of microstructure of 42CrMo4 low alloy structural steel used for machine parts exposed to higher stresses. The steel was alloyed with cerium in the form of mischmetal to achive fine-grained microstructure. Operational experiment was proposed and realized in accordance with results of laboratory experiment. A general trend in steelmaking industry is to increase strength, resistance to brittle fracture and fatigue properties of steel products at favorable price. Achieving fine-grained microstructure during austenite to ferrite transformation is a basic prerequisite to improve the mechanical properties. The desired transformation can be achieved in several ways one of which is the use of small non-metallic inclusions as heterogenous nucleation sites during solidification of steel. A great attention is focused on this concept in recent years. Rare earth metals are suitable for the formation of small inclusions similarly as in the case of conventional microalloying elements such as niobium, titanium, vanadium and other. Rare earth metals have a high affinity to oxygen and sulfur. The paper deals with the optimization of microstructure of 42CrMo4 low alloy structural steel used for machine parts exposed to higher stresses. The steel was alloyed with cerium in the form of mischmetal to achive fine-grained microstructure. Operational experiment was proposed and realized in accordance with results of laboratory experiment. (en)
Title	Optimatization of the Microstructure of the Low Alloy Structural Steel Using a Rare Earth Metal Optimatization of the Microstructure of the Low Alloy Structural Steel Using a Rare Earth Metal (en)
skos:prefLabel	Optimatization of the Microstructure of the Low Alloy Structural Steel Using a Rare Earth Metal Optimatization of the Microstructure of the Low Alloy Structural Steel Using a Rare Earth Metal (en)
skos:notation	RIV/25877950:_____/14:#0000080!RIV15-TA0-25877950
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(TA03010161)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Jonšta, Petr Machovčák, Pavel Trefil, Antonín Sušovský, Michal
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	VÍTKOVICE HEAVY MACHINERY a.s.
http://linked.open...dnocenehoVysledku	34918
http://linked.open...ai/riv/idVysledku	RIV/25877950:_____/14:#0000080
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	rare earth metals; microcleaness; microstructure; mechanical properties (en)
http://linked.open.../riv/klicoveSlovo	rare earth metals mechanical properties microstructure microcleaness
http://linked.open...ontrolniKodProRIV	[2A3F3AA85D3C]
http://linked.open...v/mistoKonaniAkce	Parkhotel Plzeň
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	COMAT 2014, Conference Proceedings 3rd International Conference COMAT on Recent Trends in Structural Materials
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Experimental development of non-ferrous metals utilizationin in the MISCHMETAL form for microstructure refinement in the production of steel ingots for forgings in the specific work
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Jonšta, Petr Machovčák, Pavel Trefil, Antonín Drápala, J. Sušovský, Michal Brožová, S. Rykalová, E.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-11-19 (xsd:date)
number of pages	5 (xsd:int)
http://purl.org/ne...btex#hasPublisher	TANGER spol. s r.o.
https://schema.org/isbn	978-80-87294-45-1

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