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| rdf:type
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| Description
| - The influence of chemical composition on the deformation resistance of iron aluminides was studied by the plastometric tests on three types of Fe–40at.%Al based materials; especially the influence of zirconium and boron, respectively effect of fine TiB2 particles addition was investigated. All materials were prepared using the identical procedure (laboratory melting and casting under vacuum to the same cast’s shape), which is methodologically valuable. The same method of sampling, sample preparation and analogous testing conditions were used for subsequent experiments, which took place on identical Gleeble 3800 plastometer. The samples were pre-heated to a temperature of 1200 °C and then deformed at temperatures from 800 to 1200 °C, the nominal strain rate was 0.05 s-1, 0.4 s-1, 4 s-1 and 30 s-1. The activation energy values for hot forming of all three types of coarse-grained cast material (Fe-40Al, Fe-40Al-Zr-B, Fe-40Al+TiB2) were obtained from the peak values of stress-strain curves by the same methodology – multiple regression analysis of the known hyperbolic sine relation. The relationships describing the maximum deformation resistance of aluminides depending on the temperature-compensated strain rate, i.e. the Zener-Hollomon parameter were derived from obtained data. The values of activation energy and hot deformation resistance of the studied materials were compared and the differences interpreted in terms of physical-metallurgical effects of additives.
- The influence of chemical composition on the deformation resistance of iron aluminides was studied by the plastometric tests on three types of Fe–40at.%Al based materials; especially the influence of zirconium and boron, respectively effect of fine TiB2 particles addition was investigated. All materials were prepared using the identical procedure (laboratory melting and casting under vacuum to the same cast’s shape), which is methodologically valuable. The same method of sampling, sample preparation and analogous testing conditions were used for subsequent experiments, which took place on identical Gleeble 3800 plastometer. The samples were pre-heated to a temperature of 1200 °C and then deformed at temperatures from 800 to 1200 °C, the nominal strain rate was 0.05 s-1, 0.4 s-1, 4 s-1 and 30 s-1. The activation energy values for hot forming of all three types of coarse-grained cast material (Fe-40Al, Fe-40Al-Zr-B, Fe-40Al+TiB2) were obtained from the peak values of stress-strain curves by the same methodology – multiple regression analysis of the known hyperbolic sine relation. The relationships describing the maximum deformation resistance of aluminides depending on the temperature-compensated strain rate, i.e. the Zener-Hollomon parameter were derived from obtained data. The values of activation energy and hot deformation resistance of the studied materials were compared and the differences interpreted in terms of physical-metallurgical effects of additives. (en)
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| Title
| - Effect of chemical composition on the behavior of selected iron aluminides
- Effect of chemical composition on the behavior of selected iron aluminides (en)
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| skos:prefLabel
| - Effect of chemical composition on the behavior of selected iron aluminides
- Effect of chemical composition on the behavior of selected iron aluminides (en)
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| skos:notation
| - RIV/61989100:27360/12:86084768!RIV13-GA0-27360___
|
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(ED0040/01/01), P(GAP107/10/0438), S
|
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/61989100:27360/12:86084768
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - Iron aluminides, hot compression, stress-strain curves, activation energy, deformation resistance (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...v/mistoKonaniAkce
| |
| http://linked.open...i/riv/mistoVydani
| |
| http://linked.open...i/riv/nazevZdroje
| - METAL 2012 : 21st International Conference on Metallurgy and Materials : conference proceedings
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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
| - Schindler, Ivo
- Kopeček, Jaromír
- Šumšal, Václav
- Šíma, Vladimír
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| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| |
| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
| |
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