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| rdf:type
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| Description
| - Typické vlastnosti vysokopevnostních ocelových plechů používaných v automobilovém průmyslu jsou nepoužitelné pro standardizované zkoušky. Cílem této studie bylo navrhnout vhodnou metodiku pro jejich zkoušení. Mikrostruktury byly pozorovány pomocí světelné a elektronové mikroskopie. Modifikovaná Charpyho zkouška a zkouška lomové houževnatosti byly použity pro srovnání lomových vlastností tří různých vysokopevnostních ocelí (Docol 1200 M, Multiphase 1200 and BTR 165). Byly stanoveny přechodové křivky a charakterizována odolnost proti šíření trhliny (J-Δa křivky). Z hodnoty lomové houževnatosti pro danou tloušťku byla odhadnuta hodnota lomové houževnatosti KIc pro stav rovinné deformace. Na porušených tělesech byla provedena fraktografická analýza, která odhalila, že díky smíšené feriticko-martenzitické struktruře dochází k tvárnému porušení i při nízkých teplotách (až do -100 °C). (cs)
- Typical thicknesses of high-strength steels (HSS) sheets used in the car industry are inapplicable for standardized testing procedures. The aim of this study is to propose an appropriate methodology for testing and comparing of thin HSS sheets. Microstructures were observed by means of light and scanning electron microscopy. The modified Charpy impact tests and fracture toughness tests were used in order to compare the fracture properties of three different HSS sheets (Docol 1200 M, Multiphase 1200 and BTR 165). Ductile-to-brittle transition curves and tearing resistance (J-Δa) curves were measured. From the fracture toughness linked to the specimen thicknesses the value of fracture toughness KIc was estimated. Fractographic analysis of broken specimens has revealed that due to the fine microstructure of mixed ferrite-martensite fracture mechanism remains ductile even at low temperatures (down to -100 °C).
- Typical thicknesses of high-strength steels (HSS) sheets used in the car industry are inapplicable for standardized testing procedures. The aim of this study is to propose an appropriate methodology for testing and comparing of thin HSS sheets. Microstructures were observed by means of light and scanning electron microscopy. The modified Charpy impact tests and fracture toughness tests were used in order to compare the fracture properties of three different HSS sheets (Docol 1200 M, Multiphase 1200 and BTR 165). Ductile-to-brittle transition curves and tearing resistance (J-Δa) curves were measured. From the fracture toughness linked to the specimen thicknesses the value of fracture toughness KIc was estimated. Fractographic analysis of broken specimens has revealed that due to the fine microstructure of mixed ferrite-martensite fracture mechanism remains ductile even at low temperatures (down to -100 °C). (en)
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| Title
| - Mechanical Properties and Fracture Behavior of High-Strength Steels
- Mechanické vlastnosti a lomové chování vysokopevnostních ocelí (cs)
- Mechanical Properties and Fracture Behavior of High-Strength Steels (en)
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| skos:prefLabel
| - Mechanical Properties and Fracture Behavior of High-Strength Steels
- Mechanické vlastnosti a lomové chování vysokopevnostních ocelí (cs)
- Mechanical Properties and Fracture Behavior of High-Strength Steels (en)
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| skos:notation
| - RIV/68407700:21340/08:04147926!RIV09-MSM-21340___
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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...iv/cisloPeriodika
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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/68407700:21340/08:04147926
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Charpy impact test; fractography; fracture toughness; high-strength steels (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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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...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Haušild, Petr
- Mušálek, Radek
- Siegl, Jan
- Sláma, J.
- Bensch, Jan
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| http://linked.open...ain/vavai/riv/wos
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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