About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
New Frontiers in Physical Metallurgy of Steels
|
| Presentation Title |
Implementation of an alternative integral route for obtaining experimental double-phase steel |
| Author(s) |
Jorge Tapia-Juárez, Octavio Vázquez-Gómez, Pedro Garnica-González, Héctor Javier Vergara-Hernández |
| On-Site Speaker (Planned) |
Jorge Tapia-Juárez |
| Abstract Scope |
Double-phase (DP) steels are part of the advanced high-strength steels (AHSS) used in the automotive industry. From a martensitic microstructure, an integral thermal process (unconventional condition) was applied in a Joule heating device to an experimental DP steel alloyed with Mn-Mo-V to evaluate the effects of the heating mode. The process consisted of an intercritical annealing and controlled cooling route, which was compared with a conventional treatment process in a laboratory muffle. The resulting microstructure was analyzed using optical and scanning electron microscopy and Vickers microhardness measurements. The microstructure of the steel showed a structure composed of ferrite and martensite in both conditions; however, the martensite volume fraction was significantly higher, and consequently, the microhardness was higher. The integral thermal process aims to achieve results similar to conventional treatment under rapid thermal parameters, short times, and high heating rates.
Keywords: DP steels, AHSS, Joule heating. |