About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
D-15: Implementation of Tempering to Obtain an Experimental Dual-Phase Steel |
| Author(s) |
Jorge Tapia-Juárez, Octavio Vázquez-Gómez, Pedro Garnica-González, Héctor Javier Vergara-Hernández, Itzel Reyes-Chaparro, Monserrat Sofia López-Cornejo |
| On-Site Speaker (Planned) |
Jorge Tapia-Juárez |
| Abstract Scope |
Dual-phase steels are a type of advanced high-strength steel used in the automotive industry. From a martensitic microstructure, a thermal process was applied to an experimental Mo-V alloyed dual-phase steel to evaluate the effects of the thermal route, mainly on the microhardness. The process consisted of an intercritical annealing step and a subsequent tempering step, which was compared to a conventional intercritical treatment route. The resulting microstructure was analyzed using optical and scanning electron microscopy, as well as Vickers microhardness measurements. The microstructure of the steel, under conventional conditions, exhibited a microstructure composed of ferrite and martensite, similar to that observed in the tempered process. However, due to the effect of tempering, secondary hardening is present, resulting from the precipitation of alloy carbides, and consequently, the microhardness changes. The thermal route with tempering aims to achieve uniform microhardness in DP steel. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Iron and Steel, Phase Transformations |