Effects of microstructural changes on mechanical properties of cold rolled and annealed strips from S420 MC and S500 MC microalloyed steels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F08%3A00019526" target="_blank" >RIV/61989100:27360/08:00019526 - 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

Effects of microstructural changes on mechanical properties of cold rolled and annealed strips from S420 MC and S500 MC microalloyed steels

Popis výsledku v původním jazyce

Development of microstructure and effect of structural changes on mechanical properties of two types of HSLA steel after laboratory cold rolling and annealing was studied. Samples of hot rolled strips with thickness of 4 mm underwent laboratory cold rolling in several passes with relative height reduction in the range of 5 to 75 %. The rolled out samples were annealed in the vacuum furnace with protective atmosphere of 90 % N2 + 10 % H2. Mechanical properties of the annealed samples were found out: elongation A80 [%], yield stress YS [MPa], ultimate tensile strength UTS [MPa] and ratio YS/UTS [%]. The samples were investigated by means of metallographic methods to explain the influence of cold deformation and annealing on the resulting mechanical properties. Transmission electron microscopy (TEM) analysis was used for identification of minority phases and evaluation of differences in quantity, size, shape and distribution of precipitates. Character of ferritic grains, as well as proper

Název v anglickém jazyce

Effects of microstructural changes on mechanical properties of cold rolled and annealed strips from S420 MC and S500 MC microalloyed steels

Popis výsledku anglicky

Development of microstructure and effect of structural changes on mechanical properties of two types of HSLA steel after laboratory cold rolling and annealing was studied. Samples of hot rolled strips with thickness of 4 mm underwent laboratory cold rolling in several passes with relative height reduction in the range of 5 to 75 %. The rolled out samples were annealed in the vacuum furnace with protective atmosphere of 90 % N2 + 10 % H2. Mechanical properties of the annealed samples were found out: elongation A80 [%], yield stress YS [MPa], ultimate tensile strength UTS [MPa] and ratio YS/UTS [%]. The samples were investigated by means of metallographic methods to explain the influence of cold deformation and annealing on the resulting mechanical properties. Transmission electron microscopy (TEM) analysis was used for identification of minority phases and evaluation of differences in quantity, size, shape and distribution of precipitates. Character of ferritic grains, as well as proper

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Steel research international

ISSN

1611-3683

e-ISSN

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Svazek periodika

79

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000267944700029

EID výsledku v databázi Scopus

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