The effect of hydrogen and deformation on the mechanical properties of TRIP 780 steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F18%3A10240892" target="_blank" >RIV/61989100:27350/18:10240892 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/18:10240892

Výsledek na webu

<a href="https://www.metalconference.eu/files/uploads/02/Sbornik_Metal_2018_Content.pdf" target="_blank" >https://www.metalconference.eu/files/uploads/02/Sbornik_Metal_2018_Content.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The effect of hydrogen and deformation on the mechanical properties of TRIP 780 steel

Popis výsledku v původním jazyce

This work deals with the influence of hydrogen on the mechanical properties of TRIP 780 type C-Mn-Si steel. Tensile test bars were hydrogenated in 0.1N sulfuric acid solution with the addition of KSCN during the slow strain rate tensile tests (SSRT). Due to the presence of hydrogen in the steel microstructure, there was a significant decrease of elongation at fracture from 33 % to 3 % and a decrease of tensile strength from 868 MPa to 642 MPa, respectively 658 MPa at current density 5 or 1 mA.cm-2. The yield strength slightly increased from 505 MPa to approximately 517 MPa after hydrogenation. The relative change of elongation at fracture due to hydrogen was expressed by the index of hydrogen embrittlement F, which exceeded 95 %. The fracture surfaces of the tensile test bars were subjected to fractographic analysis. The presence of hydrogen during the tensile test influenced the failure mechanism and manifested itself by the occurrence of the quasi-cleavage fracture at the fracture surface.

Název v anglickém jazyce

The effect of hydrogen and deformation on the mechanical properties of TRIP 780 steel

Popis výsledku anglicky

This work deals with the influence of hydrogen on the mechanical properties of TRIP 780 type C-Mn-Si steel. Tensile test bars were hydrogenated in 0.1N sulfuric acid solution with the addition of KSCN during the slow strain rate tensile tests (SSRT). Due to the presence of hydrogen in the steel microstructure, there was a significant decrease of elongation at fracture from 33 % to 3 % and a decrease of tensile strength from 868 MPa to 642 MPa, respectively 658 MPa at current density 5 or 1 mA.cm-2. The yield strength slightly increased from 505 MPa to approximately 517 MPa after hydrogenation. The relative change of elongation at fracture due to hydrogen was expressed by the index of hydrogen embrittlement F, which exceeded 95 %. The fracture surfaces of the tensile test bars were subjected to fractographic analysis. The presence of hydrogen during the tensile test influenced the failure mechanism and manifested itself by the occurrence of the quasi-cleavage fracture at the fracture surface.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

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

ISBN

978-80-87294-84-0

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

897-902

Název nakladatele

TANGER Ltd.

Místo vydání

Hotel Voroněž I, Brno

Místo konání akce

Hotel Voroněž I, Brno

Datum konání akce

23. 5. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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