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| rdf:type
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| Description
| - Intercritical annealing, which is used to obtain suitable properties of TRIP steels, and Q-P processing are both using positive effect of retained austenite and multiphase micro structure to achieve good combination of strength and ductility of low alloyed steels. The aim of the intercritical annealing is to produce a combination of carbide free bainite, ferrite and a small amount of retained austenite. This structure can achieve the strength in the range of 800-1000MPa depending on its chemical composition with ductility reaching up to 30%. Q-P process produces retained austenite dispersed in a martensitic matrix as a thin film along martensitic needles, which increases the strength to 2000MPa while keeping the ductility at 10%. To ensure these properties it is not only necessary to follow suitable conditions of heat or thermomechanical treatment, but also to choose the convenient chemical composition which prevents carbides precipitation. Both processing methods, Q-P treatment and intercritical annealing were applied to two low alloyed steels with varying amounts of carbon, manganese and chromium. Typical features of each processing method were kept, which means that bainitic hold to stabilized retained austenite was carried out at the temperature of 425°C during the intercritical annealing, while undercooling to the temperature below Ms was applied in Q-P process. 42SiCr steel (0,4%C) after Q-P processing achieved the strength above 1900MPa with the ductility higher than 15%. T2 steel (0,2%C) reached after the same processing lower strength of 1175MPa with A5mm = 16%. Intercritical annealing resulted into an uncommon mixture of bainite-martensite-retained austenite, which was analyzed by different microscopic techniques.
- Intercritical annealing, which is used to obtain suitable properties of TRIP steels, and Q-P processing are both using positive effect of retained austenite and multiphase micro structure to achieve good combination of strength and ductility of low alloyed steels. The aim of the intercritical annealing is to produce a combination of carbide free bainite, ferrite and a small amount of retained austenite. This structure can achieve the strength in the range of 800-1000MPa depending on its chemical composition with ductility reaching up to 30%. Q-P process produces retained austenite dispersed in a martensitic matrix as a thin film along martensitic needles, which increases the strength to 2000MPa while keeping the ductility at 10%. To ensure these properties it is not only necessary to follow suitable conditions of heat or thermomechanical treatment, but also to choose the convenient chemical composition which prevents carbides precipitation. Both processing methods, Q-P treatment and intercritical annealing were applied to two low alloyed steels with varying amounts of carbon, manganese and chromium. Typical features of each processing method were kept, which means that bainitic hold to stabilized retained austenite was carried out at the temperature of 425°C during the intercritical annealing, while undercooling to the temperature below Ms was applied in Q-P process. 42SiCr steel (0,4%C) after Q-P processing achieved the strength above 1900MPa with the ductility higher than 15%. T2 steel (0,2%C) reached after the same processing lower strength of 1175MPa with A5mm = 16%. Intercritical annealing resulted into an uncommon mixture of bainite-martensite-retained austenite, which was analyzed by different microscopic techniques. (en)
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| Title
| - Effect of Advanced Thermomechanial Treatment on mechanical properties of low alloyed high strength steels
- Effect of Advanced Thermomechanial Treatment on mechanical properties of low alloyed high strength steels (en)
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| skos:prefLabel
| - Effect of Advanced Thermomechanial Treatment on mechanical properties of low alloyed high strength steels
- Effect of Advanced Thermomechanial Treatment on mechanical properties of low alloyed high strength steels (en)
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| skos:notation
| - RIV/49777513:23210/12:43915369!RIV14-GA0-23210___
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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/49777513:23210/12:43915369
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - low alloyed steel; intercritical annealing; Q-P process; TRIP 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
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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
| - Jirková, Hana
- Kučerová, Ludmila
- Mašek, Bohuslav
- Prucha, Vojtěch
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open...ain/vavai/riv/wos
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| http://linked.open.../riv/zahajeniAkce
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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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