About: Mechanism of Grain Refinement Induced by Severe Plastic Deformation

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The grain refinement observed in metals exposed to severe plastic deformation (SPD) is interpreted as an energy minimization process. For a crystalline solid it is less energetically costly to be fragmented in small regions (subgrains) deformed by a reduced number of slip systems and fitted together by local reorientations than to be deformed by homogeneous multislip. The energy minimization enhanced by hardening tends to reduce the size of the subgrains. On the other hand, the refinement increases the area of the boundaries between the subgrains, hence, it increases interface energy. The effective rotation of the active slip systems, which is a basic characteristic of SPD processing techniques, enhances the refinement process. It is proposed that the effective rotation causes a continuous reconstruction of the substructure pattern. The hindered destruction of the previous pattern leads to an increased hardening thus reducing the size of the subgrains. The grain refinement observed in metals exposed to severe plastic deformation (SPD) is interpreted as an energy minimization process. For a crystalline solid it is less energetically costly to be fragmented in small regions (subgrains) deformed by a reduced number of slip systems and fitted together by local reorientations than to be deformed by homogeneous multislip. The energy minimization enhanced by hardening tends to reduce the size of the subgrains. On the other hand, the refinement increases the area of the boundaries between the subgrains, hence, it increases interface energy. The effective rotation of the active slip systems, which is a basic characteristic of SPD processing techniques, enhances the refinement process. It is proposed that the effective rotation causes a continuous reconstruction of the substructure pattern. The hindered destruction of the previous pattern leads to an increased hardening thus reducing the size of the subgrains. (en)
Title	Mechanism of Grain Refinement Induced by Severe Plastic Deformation Mechanism of Grain Refinement Induced by Severe Plastic Deformation (en)
skos:prefLabel	Mechanism of Grain Refinement Induced by Severe Plastic Deformation Mechanism of Grain Refinement Induced by Severe Plastic Deformation (en)
skos:notation	RIV/68407700:21110/11:00174181!RIV12-MSM-21110___
http://linked.open...avai/predkladatel	Fakulta stavební
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GAP201/10/0357), Z(MSM6840770003), Z(MSM6840770021)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Kratochvíl, Jan
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	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	211286
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/11:00174181
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	severe plastic deformation, grain refinement (en)
http://linked.open.../riv/klicoveSlovo	severe plastic deformation grain refinement
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[6959B008355C]
http://linked.open...i/riv/nazevZdroje	Materials Science Forum
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Modern mathematical and computational models for inelastic processes in solids
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	667-669
http://linked.open...iv/tvurceVysledku	Kratochvíl, Jan
http://linked.open...ain/vavai/riv/wos	000299234300103
http://linked.open...n/vavai/riv/zamer	Rozvoj algoritmů počítačových simulací a jejich aplikace v inženýrství Characterization of materials
issn	0255-5476
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.4028/www.scientific.net/MSF.667-669.617
http://localhost/t...ganizacniJednotka	21110
is http://linked.open...avai/riv/vysledek of	Mechanism of Grain Refinement Induced by Severe Plastic Deformation Mechanism of Grain Refinement Induced by Severe Plastic Deformation

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