About: Microstructure Development and Ductility of Ultra-Fine Grained Mg-Gd Alloy Prepared by High Pressure Torsion

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Lattice defects and thermal stability of ultra fine grained (UFG) Mg-Gd alloy prepared by high-pressure torsion (HPT) were investigated. Positron annihilation spectroscopy (PAS) was combined with TEM, XRD, microhardness (HV) and deformation tensile tests. HPT deformed Mg-Gd alloy exhibits UFG structure with mean grain size of 100 nm and a dense network of dislocations distributed uniformly throughout the whole sample. Recovery of dislocations takes place at relatively low temperatures, but it is not accompanied by grain growth up to 300 °C. Tensile tests performed at elevated temperatures showed that HPT-deformed alloy exhibits a superplastic behavior at 400 °C. Moreover, it was found that the precipitation sequence in HPT-deformed alloy differs from that in conventional coarse-grained material. Lattice defects and thermal stability of ultra fine grained (UFG) Mg-Gd alloy prepared by high-pressure torsion (HPT) were investigated. Positron annihilation spectroscopy (PAS) was combined with TEM, XRD, microhardness (HV) and deformation tensile tests. HPT deformed Mg-Gd alloy exhibits UFG structure with mean grain size of 100 nm and a dense network of dislocations distributed uniformly throughout the whole sample. Recovery of dislocations takes place at relatively low temperatures, but it is not accompanied by grain growth up to 300 °C. Tensile tests performed at elevated temperatures showed that HPT-deformed alloy exhibits a superplastic behavior at 400 °C. Moreover, it was found that the precipitation sequence in HPT-deformed alloy differs from that in conventional coarse-grained material. (en)
Title	Microstructure Development and Ductility of Ultra-Fine Grained Mg-Gd Alloy Prepared by High Pressure Torsion Microstructure Development and Ductility of Ultra-Fine Grained Mg-Gd Alloy Prepared by High Pressure Torsion (en)
skos:prefLabel	Microstructure Development and Ductility of Ultra-Fine Grained Mg-Gd Alloy Prepared by High Pressure Torsion Microstructure Development and Ductility of Ultra-Fine Grained Mg-Gd Alloy Prepared by High Pressure Torsion (en)
skos:notation	RIV/00216208:11320/10:10069851!RIV11-MSM-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KAN300100801), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Stulíková, Ivana Smola, Bohumil Procházka, Ivan Čížek, Jakub
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	271276
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/10:10069851
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	High Pressure Torsion.; Alloy; Ultra-Fine Grained Mg-Gd; Ductility; Thermal stability; Defects; Microstructure (en)
http://linked.open.../riv/klicoveSlovo	Ductility Thermal stability Defects Alloy Microstructure High Pressure Torsion. Ultra-Fine Grained Mg-Gd
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[B15D4383B3ED]
http://linked.open...i/riv/nazevZdroje	Materials Science Forum
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	Multifunctional bulk metallic materials with nanocrystalline and ultrafine-grained structure
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	633-634
http://linked.open...iv/tvurceVysledku	Procházka, Ivan Smola, Bohumil Stulíková, Ivana Čížek, Jakub Očenášek, Vladivoj Islamgaliev, Rinat K. Kulyasova, Olya
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	0255-5476
number of pages	11 (xsd:int)
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Microstructure Development and Ductility of Ultra-Fine Grained Mg-Gd Alloy Prepared by High Pressure Torsion Microstructure Development and Ductility of Ultra-Fine Grained Mg-Gd Alloy Prepared by High Pressure Torsion Microstructure Development and Ductility of Ultra-Fine Grained Mg-Gd Alloy Prepared by High Pressure Torsion

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