Processing Strategies for Hot-Rolled Medium-Mn Steels
| Autor: | Skowronek Adam, Adam Grajcar, Mateusz Morawiec |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Intercritical annealing Mechanical Engineering Metallurgy 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Hot rolled 020501 mining & metallurgy 0205 materials engineering Mechanics of Materials Thermomechanical processing General Materials Science 0210 nano-technology |
| Zdroj: | Materials Science Forum. 1016:132-136 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.1016.132 |
| Popis: | The study aims at reviewing manufacturing schedules for hot-rolled and intercritically-annealed and thermomechanically processed medium-Mn sheet steels. Major differences between these two types of processing are indicated. They include initial microstructure (low-C martensite for hot-rolled products and deformed austenite for thermomechanically processed products), partitioning of alloying elements (depending on intercritical annealing or batch annealing conditions) and microstructure prior to cooling (ultrafine-grained lath mixture of ferrite and austenite for hot-rolled, intercritically annealed products and deformed austenite for directly cooled products). The comparison of typical microstructures (LM, SEM) and phase transformation behavior are presented. A role of Mn as an austenite stabilizer in a range used for medium-Mn steels is explained. Some results are provided for economic steels containing 3% and 5% Mn. |
| Databáze: | OpenAIRE |
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