The role of a cooling rate in thermo-mechanical treatment with incorporated Q-P process

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F11%3A43898907" target="_blank" >RIV/49777513:23210/11:43898907 - 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
The role of a cooling rate in thermo-mechanical treatment with incorporated Q-P process
Original language description
Innovative processing strategies of high-strength steels enable better combinations of strength and ductility than the classical ones. One of these new heat treatment methods is also quenching and partitioning (Q-P) process, which benefits from a positive effect of retained austenite on mechanical properties. Resulting microstructure after Q-P process consists of martensite with 5-15% of retained austenite, which allows it to achieve strengths above 1800MPa with ductility around 10%. In this work was Q-P process incorporated into the more complex thermo-mechanical treatment with incremental deformation, which refines final microstructure and thus further improves its mechanical properties. Three steels with 0.43%C and varying manganese (0,6-1,2%) and silicon (2-2,6%) content were used to investigate the influence of these main alloying elements. The processing began with 100s austenization at 900°C or 950°C. Twenty deformation steps were always applied during the cooling from austeniza
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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