Effect of Deformation Conditions on Microstructure and Mechanical Properties of Low All-oyed Steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F17%3A43932662" target="_blank" >RIV/49777513:23210/17:43932662 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Deformation Conditions on Microstructure and Mechanical Properties of Low All-oyed Steel

Popis výsledku v původním jazyce

Low carbon, low alloyed steel 0.2%C-1.8%Si-1.5%Mn-0.06%Nb underwent thermo-mechanical processing routes typical for TRIP (transformation induced plasticit) steels. Deformation conditions were varied, i.e. various num-bers of deformation steps of the same size were applied to the steel during the cooling at 50 °C/s to room tempera-ture. This processing enabled comparison of recrystallization ability of the steel at various deformation tempera-tures. In the next step, two 10% deformations were carried out at the temperatures of 900 °C and 720 °C and the deformation rate was varied from 0.025 s-1to 2.5 s-1to evaluate the effect of deformation rate on the final microstructure and properties of TRIP steel. In this case, tow-step thermo-mechanical treatment was used with additional 600 s hold at a coiling temperature of 425 °C. Final microstructures were analysed by lightand scanning electron microscopy and mechanical properties were measured by tensile test of small samples. Ultimatetensile strengths in the region of 800 MPa – 1050 MPa were achieved with accompanying total elongation of 5-37%.

Název v anglickém jazyce

Effect of Deformation Conditions on Microstructure and Mechanical Properties of Low All-oyed Steel

Popis výsledku anglicky

Low carbon, low alloyed steel 0.2%C-1.8%Si-1.5%Mn-0.06%Nb underwent thermo-mechanical processing routes typical for TRIP (transformation induced plasticit) steels. Deformation conditions were varied, i.e. various num-bers of deformation steps of the same size were applied to the steel during the cooling at 50 °C/s to room tempera-ture. This processing enabled comparison of recrystallization ability of the steel at various deformation tempera-tures. In the next step, two 10% deformations were carried out at the temperatures of 900 °C and 720 °C and the deformation rate was varied from 0.025 s-1to 2.5 s-1to evaluate the effect of deformation rate on the final microstructure and properties of TRIP steel. In this case, tow-step thermo-mechanical treatment was used with additional 600 s hold at a coiling temperature of 425 °C. Final microstructures were analysed by lightand scanning electron microscopy and mechanical properties were measured by tensile test of small samples. Ultimatetensile strengths in the region of 800 MPa – 1050 MPa were achieved with accompanying total elongation of 5-37%.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20501 - Materials engineering

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)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Manufacturing Technology

ISSN

1213-2489

e-ISSN

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Svazek periodika

17

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

752-756

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85030548503