Influence of processing parameters of medium manganese steel with 5% mn on the development of mechanical properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F22%3A43966436" target="_blank" >RIV/49777513:23210/22:43966436 - isvavai.cz</a>

Result on the web

<a href="https://www.confer.cz/metal/2022/4481-influence-of-processing-parameters-of-medium-manganese-steel-with-5-mn-on-development-of-mechanical-properties" target="_blank" >https://www.confer.cz/metal/2022/4481-influence-of-processing-parameters-of-medium-manganese-steel-with-5-mn-on-development-of-mechanical-properties</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2022.4481" target="_blank" >10.37904/metal.2022.4481</a>

Result language

angličtina

Original language name

Influence of processing parameters of medium manganese steel with 5% mn on the development of mechanical properties

Original language description

Medium manganese steels belong to the group of third generation high-strength steels. These steels show an excellent combination of strength and ductility. Their manganese content is around 3 to 12%. After hot forming, their structure is mostly formed by a martensitic matrix. During intercritical annealing, martensite is reversed to austenite. The choice of the correct alloying and parameters of intercritical annealing, especially the heating temperature, leads to obtaining a sufficiently stable retained austenite, which significantly affects the mechanical properties. Retained austenite during cold deformation shows the so-called TRIP effect and contributes to significant deformation strengthening of the material. Medium manganese steel with 0.2% C, 5% Mn and 3% Al was chosen for the experiment and subjected to various intercritical annealing regimes after hot forming. To increase the stability of the retained austenite, isothermal hold at different temperatures was performed in the bainitic transformation region. To verify the effect of deformation, a variant with inserted incremental deformation during cooling was also tested. After processing, martensitic structures were obtained with varying portions of bainite, which was supported by the holding time at 425°C, ferrite and residual austenite. The yield strength reached up to 1940 MPa with an elongation of about 10%.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/EF19_073%2F0016931" target="_blank" >EF19_073/0016931: Improving the quality of the internal grant structure at UWB</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Article name in the collection

Proceedings 31st International Conference on Metallurgy and Materials

ISBN

978-80-88365-06-8

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

413-418

Publisher name

TANGER Ltd.

Place of publication

Brno

Event location

Brno

Event date

May 18, 2022

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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