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| rdf:type
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| Description
| - Resistance to hydrogen embrittlement was studied for 3 variants of TRIP 800 steel, based on C-Mn-Si; C-Mn-Si-Al and C-Mn-Si-P, by performing tensile tests on electrolytically hydrogenated specimens. The specimens were prepared from laboratory heats, ingot weight was 150 kg. The ingots were forged into slabs, which were rolled into sheets 3 mm thick and subsequently cold-rolled to the thickness of 1.5 mm. The sheets were then subjected to two-stage annealing: the sheets were first annealed in the intercritical region, cooled rapidly, and annealed in the bainitic transformation region. All the variants examined met the requirements for the TRIP 800 steel. The yield strength laid in the range of 420-490 MPa, the tensile strength was in the range of 880-950 MPa. The residual austenite content was 9-13% in dependence on the variants. Specimens for the tensile tests serving for examination of their resistance to hydrogen embrittlement were obtained by hydrogenation in dilute sulphuric acid for 4 hours with application of current density of 1 mA.cm-2. The strain rate during tensile test was approx. 10-3 s-1. The increased hydrogen content in the steel brought about, in particular, decrease in ductility and, furthermore, change in the micro-mechanism of failure. Reduction of ductility was the biggest in the C-Mn-Si-Al variant and the smallest for the C-Mn-Si variant. The fracture morphology was basically comparable in all 3 variants. In addition to ductile failure regions, transgranular cleavage fracture regions were observed following the electrolytic hydrogenation process. Fish eyes were observed to a minor extent. Intergranular brittle failure was not observed even in the variant with increased phosphorus content. When comparing the 3 TRIP 800 steel variants quantitatively, the classical C-Mn-Si variant appears to be the most resistant to hydrogen embrittlement.
- Resistance to hydrogen embrittlement was studied for 3 variants of TRIP 800 steel, based on C-Mn-Si; C-Mn-Si-Al and C-Mn-Si-P, by performing tensile tests on electrolytically hydrogenated specimens. The specimens were prepared from laboratory heats, ingot weight was 150 kg. The ingots were forged into slabs, which were rolled into sheets 3 mm thick and subsequently cold-rolled to the thickness of 1.5 mm. The sheets were then subjected to two-stage annealing: the sheets were first annealed in the intercritical region, cooled rapidly, and annealed in the bainitic transformation region. All the variants examined met the requirements for the TRIP 800 steel. The yield strength laid in the range of 420-490 MPa, the tensile strength was in the range of 880-950 MPa. The residual austenite content was 9-13% in dependence on the variants. Specimens for the tensile tests serving for examination of their resistance to hydrogen embrittlement were obtained by hydrogenation in dilute sulphuric acid for 4 hours with application of current density of 1 mA.cm-2. The strain rate during tensile test was approx. 10-3 s-1. The increased hydrogen content in the steel brought about, in particular, decrease in ductility and, furthermore, change in the micro-mechanism of failure. Reduction of ductility was the biggest in the C-Mn-Si-Al variant and the smallest for the C-Mn-Si variant. The fracture morphology was basically comparable in all 3 variants. In addition to ductile failure regions, transgranular cleavage fracture regions were observed following the electrolytic hydrogenation process. Fish eyes were observed to a minor extent. Intergranular brittle failure was not observed even in the variant with increased phosphorus content. When comparing the 3 TRIP 800 steel variants quantitatively, the classical C-Mn-Si variant appears to be the most resistant to hydrogen embrittlement. (en)
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| Title
| - INFLUENCE OF DIFFERENT CHEMICAL COMPOSITION ON RESISTANCE OF TRIP 800 STEEL TO HYDROGEN EMBRITTLEMENT
- INFLUENCE OF DIFFERENT CHEMICAL COMPOSITION ON RESISTANCE OF TRIP 800 STEEL TO HYDROGEN EMBRITTLEMENT (en)
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| skos:prefLabel
| - INFLUENCE OF DIFFERENT CHEMICAL COMPOSITION ON RESISTANCE OF TRIP 800 STEEL TO HYDROGEN EMBRITTLEMENT
- INFLUENCE OF DIFFERENT CHEMICAL COMPOSITION ON RESISTANCE OF TRIP 800 STEEL TO HYDROGEN EMBRITTLEMENT (en)
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| skos:notation
| - RIV/61989100:27360/11:86081425!RIV12-GA0-27360___
|
| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(ED0040/01/01), P(GA106/09/1587), Z(MSM6198910015)
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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/61989100:27360/11:86081425
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - tensile test; hydrogen embrittlement; TRIP 800 steel (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
| - 20th Anniversary International Conference on Metallurgy and Materials: METAL 2011
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Konečná, Kateřina
- Sojka, Jaroslav
- Váňová, Petra
- Wenglorzová, Andrea
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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
| |
| http://localhost/t...ganizacniJednotka
| |
| is http://linked.open...avai/riv/vysledek
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