Effect of tool temperature and dwell time in the tool for press hardening on the mechanical properties of modern high-strength steel with 3% Mn

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F23%3A43966050" target="_blank" >RIV/49777513:23210/23:43966050 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1742-6596/1045/1/012036" target="_blank" >https://iopscience.iop.org/article/10.1088/1742-6596/1045/1/012036</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/2572/1/012014" target="_blank" >10.1088/1742-6596/2572/1/012014</a>

Result language
angličtina
Original language name
Effect of tool temperature and dwell time in the tool for press hardening on the mechanical properties of modern high-strength steel with 3% Mn
Original language description
The production of sheet safety parts for car bodies is currently carried out using press hardening technology. This technology enables the creation of complex-shaped profiles even from high-strength steels without a significant spring-back effect. In combination with modern high-strength steels, which have retained austenite in their structure, it is possible to achieve high ultimate strength and ductility values. As a result, these parts are used in bodywork areas with high energy absorption requirements during impact. To achieve the required mechanical properties, suitable processing parameters must be selected. High-strength steel with 0.2%C, 3%Mn and 2%Al was used for the experiment. Press-hardening was carried out in a tool fixed in a hydraulic press and can be heated up to temperatures around 450 °C. Different tool temperatures of room temperature and 425 °C were tested and different holding times in the tool from 1 s to 600 s. After hardening in a tool at RT, the ultimate strength of about 1400 MPa with a ductility of 18 % was obtained. But quenching and holding in the preheated tool caused the ductility to increase to 28% with a drop in ultimate strength to 1050 MPa.
Czech name
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Czech description
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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>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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