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| Description
| - The paper focuses on the severe plastic deformation (SPD) of low carbon (LC) steel AISI 1010 (ČSN 12014) at increased temperature. The grain refinement of ferrite structure described with respect to initial structure of steel modified by solutioning and thermomechanical (TM) treatment prior severe plastic deformation. The refinement of coarse initial ferrite structure with grain size of 30 - 50 µm resulted from solutioning was then conducted in two steps. Preliminary structure refinement of coarse ferrite structure has been achieved due to multistep open die forging process and quite uniform ferrite structure with grain size of the order of 5 µm was received. In the second step the further gain refinement of steel structure was accomoplished during warm Equal Channel Angular Prssing (ECAP ? =120°)at 300°C, introducing different effective strain i range of ?ef =2,6 - 4. The change of microstructure in depedence of effective strain was evaluated by SEM and TEM study of thin foils. The high straining of steel resulted in extensive deformation of ferrite grains and formation of mixture of submicron grain structure in deformad banded structure with dense dislocation network and with a prevalence of subgrains. The dynamic polygonization process, due ECAP increase temperature, then modified the submicrocrystalline structure formation as well. Thereafter only indistinctive difference in structure refinement was observed. Results of tensile tests were then characterized by increased strenght and consequent softening. After deformation, fol all states of steel, there was not observed work hardeninig effect.
- The paper focuses on the severe plastic deformation (SPD) of low carbon (LC) steel AISI 1010 (ČSN 12014) at increased temperature. The grain refinement of ferrite structure described with respect to initial structure of steel modified by solutioning and thermomechanical (TM) treatment prior severe plastic deformation. The refinement of coarse initial ferrite structure with grain size of 30 - 50 µm resulted from solutioning was then conducted in two steps. Preliminary structure refinement of coarse ferrite structure has been achieved due to multistep open die forging process and quite uniform ferrite structure with grain size of the order of 5 µm was received. In the second step the further gain refinement of steel structure was accomoplished during warm Equal Channel Angular Prssing (ECAP ? =120°)at 300°C, introducing different effective strain i range of ?ef =2,6 - 4. The change of microstructure in depedence of effective strain was evaluated by SEM and TEM study of thin foils. The high straining of steel resulted in extensive deformation of ferrite grains and formation of mixture of submicron grain structure in deformad banded structure with dense dislocation network and with a prevalence of subgrains. The dynamic polygonization process, due ECAP increase temperature, then modified the submicrocrystalline structure formation as well. Thereafter only indistinctive difference in structure refinement was observed. Results of tensile tests were then characterized by increased strenght and consequent softening. After deformation, fol all states of steel, there was not observed work hardeninig effect. (en)
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| Title
| - Ecap Structure Modification by Change of Initial Structure Condition of Low Carbon Steel
- Ecap Structure Modification by Change of Initial Structure Condition of Low Carbon Steel (en)
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| skos:prefLabel
| - Ecap Structure Modification by Change of Initial Structure Condition of Low Carbon Steel
- Ecap Structure Modification by Change of Initial Structure Condition of Low Carbon Steel (en)
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| skos:notation
| - RIV/26316919:_____/13:#0000503!RIV14-MSM-26316919
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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/26316919:_____/13:#0000503
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Low carbon steel, thermal and thermomechanical treatment, severe plastic deformation ECAP, structure development, mechanical behaviour (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
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| http://linked.open...i/riv/nazevZdroje
| - XXXII. Verformungskundliches Kolloquium
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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...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Zrník, Jozef
- Kraus, Libor
- Dobatkin, J.
- Raab, V.
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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
| - Lehrstuhl für Umformtechnik
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| https://schema.org/isbn
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