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Statements

Subject Item
n2:RIV%2F25877950%3A_____%2F14%3A%230000081%21RIV15-TA0-25877950
rdf:type
skos:Concept n19:Vysledek
rdfs:seeAlso
http://www.metal2014.com/files/proceedings/17/reports/2883.pdf
dcterms:description
The manufacturing program of the company VÍTKOVICE HEAVY MACHINERY a.s. comprises production of a wide range of structural steels for the high exposed machine parts, such as shafts of wind power stations, turbine shafts, gears, etc. Due to the ever increasing demands of customers to increase the service properties of steel while maintaining the reasonable prices it is necessary to look continuously for ways to improve the offered steel grades. One option is to optimise the microstructure by refinement of grain size and thus to achieve better mechanical properties. It is generally known for achievement of fine-grained microstructure of steels a suitable combination of microalloying elements and thermomechanical processing is used. In addition to standard microalloying elements, such as Al, V, Nb and Ti it is also possible to use cerium inclusions of which serve as good place for heterogeneous nucleation during solidification of steel. In this paper the influence of cerium on optimisation of microstructure of the 42CrMo4 steel was studied. A series of laboratory tests was performed, on the basis of the results of which an operational experiment was proposed and designed. The manufacturing program of the company VÍTKOVICE HEAVY MACHINERY a.s. comprises production of a wide range of structural steels for the high exposed machine parts, such as shafts of wind power stations, turbine shafts, gears, etc. Due to the ever increasing demands of customers to increase the service properties of steel while maintaining the reasonable prices it is necessary to look continuously for ways to improve the offered steel grades. One option is to optimise the microstructure by refinement of grain size and thus to achieve better mechanical properties. It is generally known for achievement of fine-grained microstructure of steels a suitable combination of microalloying elements and thermomechanical processing is used. In addition to standard microalloying elements, such as Al, V, Nb and Ti it is also possible to use cerium inclusions of which serve as good place for heterogeneous nucleation during solidification of steel. In this paper the influence of cerium on optimisation of microstructure of the 42CrMo4 steel was studied. A series of laboratory tests was performed, on the basis of the results of which an operational experiment was proposed and designed.
dcterms:title
The influence of Cerium on the Microstructure Optimization of 42CrMo4Steel The influence of Cerium on the Microstructure Optimization of 42CrMo4Steel
skos:prefLabel
The influence of Cerium on the Microstructure Optimization of 42CrMo4Steel The influence of Cerium on the Microstructure Optimization of 42CrMo4Steel
skos:notation
RIV/25877950:_____/14:#0000081!RIV15-TA0-25877950
n3:aktivita
n13:P
n3:aktivity
P(TA03010161)
n3:dodaniDat
n5:2015
n3:domaciTvurceVysledku
n4:2914344 n4:2559315 n4:3567311 n4:2583593
n3:druhVysledku
n20:D
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
21342
n3:idVysledku
RIV/25877950:_____/14:#0000081
n3:jazykVysledku
n15:eng
n3:klicovaSlova
cerium; inclusion; microstructure
n3:klicoveSlovo
n6:microstructure n6:cerium n6:inclusion
n3:kontrolniKodProRIV
[74D922A46E3F]
n3:mistoKonaniAkce
Hotel Voroněž I, Brno
n3:mistoVydani
Ostrava
n3:nazevZdroje
METAL 2014, 23rd International Conference on Metallurgy and Materials, Conference Proceedings
n3:obor
n17:JG
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
6
n3:projekt
n8:TA03010161
n3:rokUplatneniVysledku
n5:2014
n3:tvurceVysledku
Trefil, Antonín Sušovský, Michal Jonšta, Petr Drápala, J. Machovčák, Pavel Brožová, S.
n3:typAkce
n12:WRD
n3:zahajeniAkce
2014-05-21+02:00
s:numberOfPages
5
n21:hasPublisher
TANGER spol. s r.o.
n18:isbn
978-80-87294-52-9