About: Microstructure stability and creep behaviour of advanced high chromium ferritic steels

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The creep resistance of two high chromium ferritic power plant steels (grades P91 and P92) is shown to be considerably influenced by microstructure changes and microstructure stability during long-term isothermal annealing and/or creep over a range of dislocation (power-law) creep. It is suggested that the change in the dislocation substructure is much more important than the indirect effect caused by particle evolution. By contrast, no significant effect of microstructure stability on creep was found in a regime of viscous creep that is inherent to real service loading conditions of the steels of interest. Finally, no deterioration of the creep properties was found for the steels P91 and P92 under cyclic creep (nonsteady stressing and heating) in a regime of power-law creep. The creep resistance of two high chromium ferritic power plant steels (grades P91 and P92) is shown to be considerably influenced by microstructure changes and microstructure stability during long-term isothermal annealing and/or creep over a range of dislocation (power-law) creep. It is suggested that the change in the dislocation substructure is much more important than the indirect effect caused by particle evolution. By contrast, no significant effect of microstructure stability on creep was found in a regime of viscous creep that is inherent to real service loading conditions of the steels of interest. Finally, no deterioration of the creep properties was found for the steels P91 and P92 under cyclic creep (nonsteady stressing and heating) in a regime of power-law creep. (en) Creepová odolnost dvou vysocelegovaných chromových ocelí ( P91 a P92) je ovlivněna mikrostrukturními změnami a mikrostrukturní stabilitou v průběhu dlouhodobého isotermického žíhání nebo creepové expozice v oblasti mocninového creepu. Je ukázáno, že změny dislokační substruktury jsou mnohem významnější nežli nepřímý vliv růstu částic. Naproti tomu nebyl pozorován významný účinek mikrostrukturní stability v oblasti viskozního creepu, který je zajímavý pro reálné zatěžovací podmínky ocelí. Rovněž nebylo pozorováno zhoršení creepových vlastností u ocelí P91 a P92 v průběhu klického creepu (nestacionárních změn teploty a zatížení), aplikovaného v oblasti mocninového creepu (cs)
Title	Microstructure stability and creep behaviour of advanced high chromium ferritic steels Mikrostrukturní stabilita a creepové chování modifikovaných chromových ocelí (cs) Microstructure stability and creep behaviour of advanced high chromium ferritic steels (en)
skos:prefLabel	Microstructure stability and creep behaviour of advanced high chromium ferritic steels Mikrostrukturní stabilita a creepové chování modifikovaných chromových ocelí (cs) Microstructure stability and creep behaviour of advanced high chromium ferritic steels (en)
skos:notation	RIV/68081723:_____/05:00024651!RIV06-AV0-68081723
http://linked.open.../vavai/riv/strany	20;33
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1QS200410502), P(GA106/02/0608), P(IAA2041101), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2006
http://linked.open...aciTvurceVysledku	Svoboda, Milan Kuchařová, Květa Kloc, Luboš Sklenička, Václav
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	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	530201
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/05:00024651
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	9-12%Cr steels; microstructure stability; creep behaviour; nonsteady creep loading (en)
http://linked.open.../riv/klicoveSlovo	creep behaviour microstructure stability 9-12%Cr steels nonsteady creep loading
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[65E4ED27DE16]
http://linked.open...i/riv/nazevZdroje	Kovové materiály
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Properties of engineering materials under development applicable in the near future in traffic, medicine and power generating industry Long-term microstructural stability and creep behaviour of advanced 9-12%Cr steels Creep of a priori Brittle Materials for High Temperature Applications at Very Low Crep Rates
http://linked.open...UplatneniVysledku	2005
http://linked.open...v/svazekPeriodika	43 2005
http://linked.open...iv/tvurceVysledku	Kloc, Luboš Kuchařová, Květa Sklenička, Václav Svoboda, Milan Kudrman, J.
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	0023-432X
number of pages	14 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Microstructure stability and creep behaviour of advanced high chromium ferritic steels

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