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| rdf:type
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| Description
| - An Al-3wt.%Mg-0.2wt.%Sc alloy was subjected to ECAP pressing through 8 passes via the route BC. Creep tests in compression were conducted at 473 K on ECAP billets and, for comparison purposes, on unpressed material. The present results were compared with the results of our earlier work on creep of pure ECAP aluminium with the same imposed strain and the ECAP processing route. The results demonstrate that the creep strength of an Al-Mg-Sc alloy is significantly improved compared to that of pure Al. The higher strength observed for the pressed ternary alloy in the high-stress region results from the synergism of solid-solution strengthening and precipitate strengthening due to Al3Sc nanoscale precipitates. The presence of these precipitates dramatically increases the creep resistance in the low-stress region through a threshold stress for creep. However, the creep resistance of the ECAP processed material was markedly deteriorated with respect to unpressed one.
- An Al-3wt.%Mg-0.2wt.%Sc alloy was subjected to ECAP pressing through 8 passes via the route BC. Creep tests in compression were conducted at 473 K on ECAP billets and, for comparison purposes, on unpressed material. The present results were compared with the results of our earlier work on creep of pure ECAP aluminium with the same imposed strain and the ECAP processing route. The results demonstrate that the creep strength of an Al-Mg-Sc alloy is significantly improved compared to that of pure Al. The higher strength observed for the pressed ternary alloy in the high-stress region results from the synergism of solid-solution strengthening and precipitate strengthening due to Al3Sc nanoscale precipitates. The presence of these precipitates dramatically increases the creep resistance in the low-stress region through a threshold stress for creep. However, the creep resistance of the ECAP processed material was markedly deteriorated with respect to unpressed one. (en)
- Slitina Al-3wt.%Mg-0.2wt.%Sc byla tvářena technikou ECAP celkem 8 průchody procesním postupem BC. Creepové testy v tlaku byly uskutečněny při teplotě 473 K jak na ECAP vzorcích, tak i na nedeformovaném stavu materiálu. Současné výsledky pak byly porovnány s výsledky v našich předešlých pracích dosažených u čistého ECAP hliníku při stejné historii tváření a zatěžování. Výsledky ukazují, že creepová odolnost slitiny Al-Mg-Sc byla významně zvýšena v porovnání s čistým hliníkem.Vyšší pevnost pozorovaná u tvářené ternární slitiny oblasti vyšších napětí (> 25 MPa) vyplývá ze součinnosti zpevnění tuhého roztoku hořčíkem a precipitačního zpevnění v důsledku přítomnosti Al3Sc nano-precipitátů. Přítomnost těchto precipitátů výrazně zvyšuje creepovou odolnost v oblasti nízkých napětí, kde dochází k výskytu prahového napětí. Nicméně, creepová odolnost tvářeného ECAP materiálu byla výrazně zhoršena v porovnání s hrubozrnným stavem. (cs)
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| Title
| - Compressive creep in Al-3%Mg-0.2%Sc alloy processed by equal-channel angular pressing
- Compressive creep in Al-3%Mg-0.2%Sc alloy processed by equal-channel angular pressing (en)
- Creep v tlaku u slitiny Al-3%Mg-0,2Sc tvářené metodou ECAP (cs)
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| skos:prefLabel
| - Compressive creep in Al-3%Mg-0.2%Sc alloy processed by equal-channel angular pressing
- Compressive creep in Al-3%Mg-0.2%Sc alloy processed by equal-channel angular pressing (en)
- Creep v tlaku u slitiny Al-3%Mg-0,2Sc tvářené metodou ECAP (cs)
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| skos:notation
| - RIV/68081723:_____/06:00099350!RIV08-AV0-68081723
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(IAA2041301), Z(AV0Z20410507)
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/68081723:_____/06:00099350
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - aluminum alloy; equal-channel angular pressing; creep testing (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
| |
| http://linked.open...i/riv/nazevZdroje
| - Ultrafine grained materials IV
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Dvořák, Jiří
- Král, Petr
- Kvapilová, Marie
- Sklenička, Václav
- Svoboda, Milan
- Horita, Z.
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| http://linked.open...n/vavai/riv/zamer
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
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| is http://linked.open...avai/riv/vysledek
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