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EFFECT OF SAMPLE GEOMETRY ON TENSILE PROPERTIES OF CHROMIUM ALLOYED MIDDLE CARBON STEEL

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F18%3A43953022" target="_blank" >RIV/49777513:23210/18:43953022 - isvavai.cz</a>

  • Výsledek na webu

    <a href="https://www.metalconference.eu/cz/sbornik-metal-2018/" target="_blank" >https://www.metalconference.eu/cz/sbornik-metal-2018/</a>

  • DOI - Digital Object Identifier

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    EFFECT OF SAMPLE GEOMETRY ON TENSILE PROPERTIES OF CHROMIUM ALLOYED MIDDLE CARBON STEEL

  • Popis výsledku v původním jazyce

    42SiCr steel is a middle carbon, low alloyed steel with (in wt. %) 0.4C, 1.3Cr, 0.6Mn and 2Si. In this work, the steel was used in hot rolled state, possessing bainite-based microstructure. In development and optimization of heat and thermo-mechanical treatments, small volumes of materials are commonly processed in various simulators or dilatometers. This means that smaller samples for mechanical testing are also necessary and question arise how exactly various sample geometries affects measured mechanical properties, particularly ductility. Four types of samples for tensile test were used for the comparison. Three of them were flat, with various cross sections and active lengths of 15, 20 and 50 mm. The same thickness of 1.2 mm was kept for all three types of flat samples. For a reference, a sample with circular cross section with 5 mm diameter and 25 mm active length was tested as well. Zwick Roell Z250 was used to perform tensile tests, according to ČSN EN ISO 6892-1. Six samples of each dimension were tested and used for calculation of average values of tensile properties. Following intervals of tensile properties were obtained: yield strengths of 721-766 MPa, ultimate tensile strengths of 1205 - 1335 MPa and total elongation of 15-19%. The highest elongation was measured for circular samples, while the highest ultimate tensile strength was achieved in the flat sample with active length of 20 mm.

  • Název v anglickém jazyce

    EFFECT OF SAMPLE GEOMETRY ON TENSILE PROPERTIES OF CHROMIUM ALLOYED MIDDLE CARBON STEEL

  • Popis výsledku anglicky

    42SiCr steel is a middle carbon, low alloyed steel with (in wt. %) 0.4C, 1.3Cr, 0.6Mn and 2Si. In this work, the steel was used in hot rolled state, possessing bainite-based microstructure. In development and optimization of heat and thermo-mechanical treatments, small volumes of materials are commonly processed in various simulators or dilatometers. This means that smaller samples for mechanical testing are also necessary and question arise how exactly various sample geometries affects measured mechanical properties, particularly ductility. Four types of samples for tensile test were used for the comparison. Three of them were flat, with various cross sections and active lengths of 15, 20 and 50 mm. The same thickness of 1.2 mm was kept for all three types of flat samples. For a reference, a sample with circular cross section with 5 mm diameter and 25 mm active length was tested as well. Zwick Roell Z250 was used to perform tensile tests, according to ČSN EN ISO 6892-1. Six samples of each dimension were tested and used for calculation of average values of tensile properties. Following intervals of tensile properties were obtained: yield strengths of 721-766 MPa, ultimate tensile strengths of 1205 - 1335 MPa and total elongation of 15-19%. The highest elongation was measured for circular samples, while the highest ultimate tensile strength was achieved in the flat sample with active length of 20 mm.

Klasifikace

  • Druh

    D - Stať ve sborníku

  • CEP obor

  • OECD FORD obor

    20501 - Materials engineering

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/LO1502" target="_blank" >LO1502: Rozvoj Regionálního technologického institutu</a><br>

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Ostatní

  • Rok uplatnění

    2018

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Údaje specifické pro druh výsledku

  • Název statě ve sborníku

    Conference Proceedings - METAL 2018 - 27th International Conference on Metallurgy and Materials

  • ISBN

    978-80-87294-84-0

  • ISSN

  • e-ISSN

    neuvedeno

  • Počet stran výsledku

    5

  • Strana od-do

    761-765

  • Název nakladatele

    TANGER Ltd., Keltickova 62, 710 00 Ostrava, Czech Republic, EU

  • Místo vydání

    Ostrava

  • Místo konání akce

    Brno, Czech Republic

  • Datum konání akce

    23. 5. 2018

  • Typ akce podle státní příslušnosti

    EUR - Evropská akce

  • Kód UT WoS článku