About: Microstructure evolution in ultrafine-grained interstitial free steel processed by high pressure torsion

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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://dx.doi.org/10.1088/1757-899X/63/1/012055
Description	Commercial interstitial free steel was processed by high pressure torsion (HPT) at room temperature up to 5 revolutions. HPT resulted in strong grain refinement. The microstructure after HPT was inhomogeneous with refined grains mainly in regions near the specimen periphery, while coarse only slightly fragmented grains were observed in specimen centre. The microstructure inhomogeneity was continuously smeared out with increasing number of rotations by extending the fine grain region from specimen periphery towards its centre. However, even after 5 revolutions the microstructure remained inhomogeneous characterized by slightly coarser grains in central regions as compared to peripheral regions of the specimen. Positron annihilation spectroscopy (PAS) and X-ray line profile analysis (XLPA) were employed to characterize the structure inhomogeneity in individual specimens. Microstructure and dislocation density evolution were correlated with mechanical properties characterized by a detail microhardness measurement throughout the individual specimens. Commercial interstitial free steel was processed by high pressure torsion (HPT) at room temperature up to 5 revolutions. HPT resulted in strong grain refinement. The microstructure after HPT was inhomogeneous with refined grains mainly in regions near the specimen periphery, while coarse only slightly fragmented grains were observed in specimen centre. The microstructure inhomogeneity was continuously smeared out with increasing number of rotations by extending the fine grain region from specimen periphery towards its centre. However, even after 5 revolutions the microstructure remained inhomogeneous characterized by slightly coarser grains in central regions as compared to peripheral regions of the specimen. Positron annihilation spectroscopy (PAS) and X-ray line profile analysis (XLPA) were employed to characterize the structure inhomogeneity in individual specimens. Microstructure and dislocation density evolution were correlated with mechanical properties characterized by a detail microhardness measurement throughout the individual specimens. (en)
Title	Microstructure evolution in ultrafine-grained interstitial free steel processed by high pressure torsion Microstructure evolution in ultrafine-grained interstitial free steel processed by high pressure torsion (en)
skos:prefLabel	Microstructure evolution in ultrafine-grained interstitial free steel processed by high pressure torsion Microstructure evolution in ultrafine-grained interstitial free steel processed by high pressure torsion (en)
skos:notation	RIV/00216208:11320/14:10287762!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GA13-09436S), P(GB14-36566G), S
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Janeček, Miloš Čížek, Jakub Vrátná, Jitka Krajňák, Tomáš
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	29264
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10287762
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	aluminum; homogeneity; microhardness; refinement; arb process; mechanical-properties; nanocrystalline copper; severe plastic-deformation (en)
http://linked.open.../riv/klicoveSlovo	arb process nanocrystalline copper refinement mechanical-properties aluminum severe plastic-deformation homogeneity microhardness
http://linked.open...ontrolniKodProRIV	[7C6AEF90EF85]
http://linked.open...v/mistoKonaniAkce	Metz
http://linked.open...i/riv/mistoVydani	BRISTOL
http://linked.open...i/riv/nazevZdroje	IOP Conference Series: Materials Science and Engineering
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Multidisciplinary research centre for advanced materials Non-destructive mapping of spatial distribution of defects in highly strained materials
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Janeček, Miloš Čížek, Jakub Gubicza, J. Krajňák, Tomáš Kim, H. S. Lee, D. J. Stráská, Jitka
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000347246200056
http://linked.open.../riv/zahajeniAkce	2014-06-30 (xsd:date)
issn	1757-8981
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/1757-899X/63/1/012055
http://purl.org/ne...btex#hasPublisher	IOP PUBLISHING LTD
https://schema.org/isbn	978-953-51-1728-5
http://localhost/t...ganizacniJednotka	11320

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