| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Advanced Steel Metallurgy
|
| Presentation Title |
Relationship between Microstructure and Tensile Properties on High Strength Medium Carbon Mo-Nb-B Microalloyed Q/Q&T Steels |
| Author(s) |
Irati Zurutuza, Nerea Isasti, Eric Detemple, Volker Schwinn, Hardy Mohrbacher, Pello Uranga |
| On-Site Speaker (Planned) |
Pello Uranga |
| Abstract Scope |
Advanced thermomechanical hot rolling schedules followed by direct quenching are being applied in industry for the production of quenched and tempered plates, in order to avoid an additional reheating and quenching treatment after hot rolling. With the purpose of exploring the synergetic effect of microalloying elements such as Nb, Mo or Nb-Mo with B, laboratory thermomechanical simulations were performed using plane strain compression; consisting of an initial preconditioning step, followed by several roughing and finishing deformation passes and a final accelerated cooling step. After quenching, a conventional tempering treatment was applied. The relationship between austenite and final martensite after quenching was evaluated using the EBSD technique and the effect of tempering was also explored in terms of microstructure and tensile properties. The aim of the current manuscript is to find the correlation between quenched martensite, quenched and tempered structure and the resulting tensile properties. |