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Description
| - velkých plastických deformacích. Experimentálně byla ověřena technologie ARB. Deformace byla realizována válcováním 11 průchody při teplotě 650ºC. Ohřev byl proveden v ochranné atmosféře. Logaritmické deformace dosahovaly hodnoty 9. Koeficient spojení jednotlivých vrstev se pohyboval kolem 90%. Vývoj struktury se ověřoval na nízkouhlíkové oceli. Jsou popsány základní vztahy mezi velikostí deformace, zjemněním zrna a navazujícími mechanickými vlastnostmi.. Ukazuje se,že technologie ARB je vhodným nástrojem pro získání jemnozrmné struktury.a lze ji aplikovat i při klasickém válcování. Dosahovaná velikost zrna se pohybovala kolem 0,3μm. Vlastnosti získané tahovou zkouškou však nedosahovaly předpokládané velikosti. Velikost zrna byla homogenní v celém objemu. (cs)
- The paper analyses methods of grain refinement and demonstrates development of structure and properties of metallic materials after severe plastic deformations(SPD).Technology ARB was experimentally verified. The material was rolled in 11 passes. Rolling procceeded at temperature 650ºC with heating in furnace with inert atmosphere (Ar). True strain has achieved the value 9. Basic relations between magnitude of deformation, grain refinemet and resulting mechanical properties were described. Bonding of degrese was greater than 90%. ARB Metod is one of instrument for acquirement materials with utrafine grain structure. It is very simply apparatus which can be used in practical technology(classical rolling mill). Developmnet of structure was verified on low carbon steel. Obtained grain size was around 0,3μm. Properties obtained by tensile test did not achieve the expected value. Grain size was homogenous in whole volume.
- The paper analyses methods of grain refinement and demonstrates development of structure and properties of metallic materials after severe plastic deformations(SPD).Technology ARB was experimentally verified. The material was rolled in 11 passes. Rolling procceeded at temperature 650ºC with heating in furnace with inert atmosphere (Ar). True strain has achieved the value 9. Basic relations between magnitude of deformation, grain refinemet and resulting mechanical properties were described. Bonding of degrese was greater than 90%. ARB Metod is one of instrument for acquirement materials with utrafine grain structure. It is very simply apparatus which can be used in practical technology(classical rolling mill). Developmnet of structure was verified on low carbon steel. Obtained grain size was around 0,3μm. Properties obtained by tensile test did not achieve the expected value. Grain size was homogenous in whole volume. (en)
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Title
| - Strenght enhancement possibilities of low carbon steels
- Strenght enhancement possibilities of low carbon steels (en)
- Možnosti zlepšování pevnosti nízkouhlíkových ocelí (cs)
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skos:prefLabel
| - Strenght enhancement possibilities of low carbon steels
- Strenght enhancement possibilities of low carbon steels (en)
- Možnosti zlepšování pevnosti nízkouhlíkových ocelí (cs)
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skos:notation
| - RIV/61989100:27360/06:00014253!RIV07-MPO-27360___
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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
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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
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61989100:27360/06:00014253
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Manufacturing and processing; plastic forming; ultra-fine grain structure; mechanical properties (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...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - Achievements in Mechanical and Materials Engineering
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Greger, Miroslav
- Kander, Ladislav
- Kocich, Radim
- Dorociaková, Gabriela
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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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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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