Trip steel processing applied to low alloyed steel with chromium

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F16%3A43929214" target="_blank" >RIV/49777513:23210/16:43929214 - 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
Trip steel processing applied to low alloyed steel with chromium
Original language description
Thermo-mechanical processing with various processing parameters was applied to 0.2%C-0.6%Mn-2S%i-0.8%Cr low alloyed high strength steel. The parameters were optimized to achieve final microstructures typical for TRIP (transformation induced plasticity) steels. These microstructures enable TRIP steels to reach very good combinations of ductility, formability and strength. TRIP steels based on C-Mn-Si concept have been mostly produced by rolling. Some other alloying elements have been also tested, for example aluminium, phosphorus or niobium, however little attention has been paid to chromium alloying. As chromium can not only increase hardenability, but also to refine the microstructure of the steel, it can contribute to further strengthening of TRIP steel. Thermo-mechanical processing used in this work consisted of various numbers of deformation steps carried out during the cooling from soaking temperatures to a bainite hold temperatures. In this way, around 10% of retained austenite has been retained in the final microstructure. The complex character of TRIP steel microstructures resulted in strengths in the range of 740MPa – 836MPa with ductility A5mm of 31-41%.
Czech name
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Czech description
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Project
<a href="/en/project/LO1502" target="_blank" >LO1502: Development of Regional Technological Institute</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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