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

Result code in 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>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

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

Name of the periodical

Steel research international

ISSN

1611-3683

e-ISSN

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Volume of the periodical

79

Issue of the periodical within the volume

2

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

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UT code for WoS article

000267944700029

EID of the result in the Scopus database

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