| Title: | Heat treatment strategies for hot-rolled and cold-rolled medium-Mn sheet steels |
| Authors: | Grajcar, Adam Morawiec, Mateusz Skowronek, Adam Dykas, Jakub |
| Citation: | JIRKOVÁ, Hana ed.; JENÍČEK, Štepán ed. Proceedings PING 2019: modern trends in material engineering: 10.-13.09.2019, Pilsen. 1. vyd. Plzeň: University of West Bohemia, 2019, s. 32. ISBN 978-80-261-0879-5. |
| Issue Date: | 2019 |
| Publisher: | University of West Bohemia |
| Document type: | konferenční příspěvek conferenceObject |
| URI: | http://hdl.handle.net/11025/35220 |
| ISBN: | 978-80-261-0879-5 |
| Keywords: | středně-manganová ocel;mezikritické žíhání;ocel válcovaná za tepla;zadržený austenit |
| Keywords in different language: | medium-Mn steel;intercritical annealing;hot-rolled steel;retained austenite |
| Abstract in different language: | Heat treatment strategies for advanced high-strength medium-Mn sheet steels are addressed. A review of the available thermal cycles for cold-rolled and hot-rolled sheets are presented. The benefits from the intercritical annealing following hot-rolling or cold-rolling are emphasized. The examples of intercritical annealing for the hotrolled sheets of initial martensitic microstructure are provided. The heat treatment was performed in a temperature range of 680-720°C for various times from 1 to 5 hours. The material used in the experiment was a medium-Mn steel containing 0.16% C, 4.7% Mn, 1.6% Al, 0.2% Mo, 0.2% Si. The scope of the research included dilatometer tests, hardness tests and microstructural characterization. The effects of temperature and time on a stabilization of retained austenite are assessed. Intercritical annealing performed at 700 and 680°C allowed forming some stable retained austenite in the microstructure. Moreover, some coiling simulations for hot-rolled strips are described. |
| Rights: | © University of West Bohemia |
| Appears in Collections: | Proceedings PING 2019: modern trends in material engineering Proceedings PING 2019: modern trends in material engineering |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| Grajcar.pdf | Plný text | 179,99 kB | Adobe PDF | View/Open |
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