About: Refinement of steel microstructure by free-forging

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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)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Nízkolegovaná ocel se skládá z feriticko-bainitické struktury s s vysokým obsahem zbytkového austenitu. Pro z (cs) It is well known that severe plastic deformation of technical alloys can result in microstructure refinement and improvement of mechanical properties. In this study severe hot deformation was applied on low alloyed 0.2C-1.5Mn-2Si-0.05Nb steel and austenitic 0.07C-18Cr-2Mn.-10Ni steel. Cast bars were annealed and processed in a full-hydraulic press. Different temperatures of preheating, dwells and strain levels were applied. Between individual blows specimens were rotated at 90° or 45°. Microstructure was characterised using optical metallography, scanning and transmission electron microscopy. After optimization of processing fine grained structures with convenient phase composition were obtained. Low alloyed steel consisted of ferritic-bainitic microstructure with high content of retained austenite. In the case of austenitic steel recrystallisation annealing had to be included at the end of processing in order to obtain uniform grain size in the whole volume of specimens. It is well known that severe plastic deformation of technical alloys can result in microstructure refinement and improvement of mechanical properties. In this study severe hot deformation was applied on low alloyed 0.2C-1.5Mn-2Si-0.05Nb steel and austenitic 0.07C-18Cr-2Mn.-10Ni steel. Cast bars were annealed and processed in a full-hydraulic press. Different temperatures of preheating, dwells and strain levels were applied. Between individual blows specimens were rotated at 90° or 45°. Microstructure was characterised using optical metallography, scanning and transmission electron microscopy. After optimization of processing fine grained structures with convenient phase composition were obtained. Low alloyed steel consisted of ferritic-bainitic microstructure with high content of retained austenite. In the case of austenitic steel recrystallisation annealing had to be included at the end of processing in order to obtain uniform grain size in the whole volume of specimens. (en)
Title	Refinement of steel microstructure by free-forging Refinement of steel microstructure by free-forging (en) Zjemnění mikrostruktury oceli volným kováním (cs)
skos:prefLabel	Refinement of steel microstructure by free-forging Refinement of steel microstructure by free-forging (en) Zjemnění mikrostruktury oceli volným kováním (cs)
skos:notation	RIV/49777513:23210/06:00000027!RIV07-GA0-23210___
http://linked.open.../vavai/riv/strany	17
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA106/02/1521)
http://linked.open...iv/cisloPeriodika	0
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Kučerová, Ludmila Jandová, Dagmar Divišová, Radka
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Západočeská univerzita v Plzni / Fakulta strojní
http://linked.open...dnocenehoVysledku	496820
http://linked.open...ai/riv/idVysledku	RIV/49777513:23210/06:00000027
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	fine-grained structure; austenitic steel; microalloyed steel; free forging; microscopy (en)
http://linked.open.../riv/klicoveSlovo	microalloyed steel microscopy austenitic steel free forging fine-grained structure
http://linked.open...odStatuVydavatele	PL - Polská republika
http://linked.open...ontrolniKodProRIV	[F63758B09115]
http://linked.open...i/riv/nazevZdroje	Journal of Achievements in Materials and Manufacturing Engineering
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Ultrafine microstructures in metal materials
http://linked.open...UplatneniVysledku	2006
http://linked.open...iv/tvurceVysledku	Divišová, Radka Jandová, Dagmar Skálová, Ludmila Drnek, Jaroslav
issn	1734-8412
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	23210

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