About: Influence of precipitation on dislocation substructure and creep properties of P91 steel weld joints

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About: Influence of precipitation on dislocation substructure and creep properties of P91 steel weld joints Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Two trial weld joints were prepared using the GTAW and SMAW method and they underwent creep testing at temperatures from 525°C to 625°C. The longest time to rupture was 45,811 hrs. Two main processes occurred during creep exposures: recovery and precipitation of secondary phases. A slight coarsening of M23C6 carbide, precipitation of Laves phase and Z-phase were observed after long tests at high temperatures. Some differences in microstructure and creep failure were found in individual zones of weldments. After long exposure at temperatures up to 600°C fractures occurred in the fine grain heat affected zone as a result of a low density of fine vanadium nitride and a high density of coarse particles at grain and subgrain boundaries. At 625°C growth of Laves phase caused a softening of the ferritic matrix and crack propagation in the weld metal. Two trial weld joints were prepared using the GTAW and SMAW method and they underwent creep testing at temperatures from 525°C to 625°C. The longest time to rupture was 45,811 hrs. Two main processes occurred during creep exposures: recovery and precipitation of secondary phases. A slight coarsening of M23C6 carbide, precipitation of Laves phase and Z-phase were observed after long tests at high temperatures. Some differences in microstructure and creep failure were found in individual zones of weldments. After long exposure at temperatures up to 600°C fractures occurred in the fine grain heat affected zone as a result of a low density of fine vanadium nitride and a high density of coarse particles at grain and subgrain boundaries. At 625°C growth of Laves phase caused a softening of the ferritic matrix and crack propagation in the weld metal. (en)
Title	Influence of precipitation on dislocation substructure and creep properties of P91 steel weld joints Influence of precipitation on dislocation substructure and creep properties of P91 steel weld joints (en)
skos:prefLabel	Influence of precipitation on dislocation substructure and creep properties of P91 steel weld joints Influence of precipitation on dislocation substructure and creep properties of P91 steel weld joints (en)
skos:notation	RIV/47718684:_____/10:#0000435!RIV11-MSM-47718684
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM4771868401)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Kasl, Josef Jandová, Dagmar
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	Výzkumný a zkušební ústav Plzeň s.r.o.
http://linked.open...dnocenehoVysledku	263754
http://linked.open...ai/riv/idVysledku	RIV/47718684:_____/10:#0000435
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	creep resistant steels, weld joints, microstructure, precipitation (en)
http://linked.open.../riv/klicoveSlovo	creep resistant steels microstructure weld joints precipitation
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[31D98BB28E9F]
http://linked.open...i/riv/nazevZdroje	Materials at High Temperatures
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	27
http://linked.open...iv/tvurceVysledku	Jandová, Dagmar Kasl, Josef
http://linked.open...n/vavai/riv/zamer	Research into service degradation of advanced constructional materials
issn	0960-3409
number of pages	6 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Influence of precipitation on dislocation substructure and creep properties of P91 steel weld joints Influence of precipitation on dislocation substructure and creep properties of P91 steel weld joints Influence of precipitation on dislocation substructure and creep properties of P91 steel weld joints

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