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The Effect of Alloying Elements on Microstructure of 0,2%C TRIP Steel

Citace:
KUČEROVÁ, L., JIRKOVÁ, H., MAŠEK, B. The Effect of Alloying Elements on Microstructure of 0,2%C TRIP Steel. In Materials Science Forum. Neuveden: Trans Tech Publications Ltd, 2017. s. 209-213. ISBN: 978-3-0357-1018-2 , ISSN: 0255-5476
Druh: STAŤ VE SBORNÍKU
Jazyk publikace: eng
Anglický název: The Effect of Alloying Elements on Microstructure of 0,2%C TRIP Steel
Rok vydání: 2017
Místo konání: Neuveden
Název zdroje: Trans Tech Publications Ltd
Autoři: Doc. Ing. Ludmila Kučerová Ph.D. , Dr. Ing. Hana Jirková , Prof. Dr. Ing. Bohuslav Mašek
Abstrakt EN: Three low alloyed transformation induced plasticity (TRIP) steels with 0.2%C were used in this work. The first one was based on the most common and popular 0.2%C - 1.5%Mn - 1.8%Si concept and was used as a reference material. The second steel was further micro-alloyed by 0.06% of niobium. The third steel was designed with lower manganese content of 0.6% and additional alloying by 0.8% of chromium. Thermo-mechanical processing with incorporated incremental deformation was applied to each steel. Various cooling rates and numbers of deformation steps were tested with regard to final microstructure and properties. After this optimization, microstructures with the potential to utilize TRIP effect were achieved for all steels. Very good mechanical properties were obtained with ductility typically in the interval of 30-40% and the tensile strengthsin the range of 680-835 MPa.
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