Medium Manganese steels for Automotive Industry
Abstract
This seminar is dedicated to summarizing recent advances in advanced high-strength steels, withparticular focus on medium manganese steels. Over the past decades, increasingly stringentregulations on passenger safety and fuel efficiency have driven the development of materialscombining high strength and ductility. Such properties are essential to ensure energy absorptionduring impact, thus enhancing passenger protection, while simultaneously enabling weight reduction ofvehicles, which contributes to lower fuel consumption and emissions. In addition, particularattention must be paid to the formability of these steels, which needs to be preserved withoutcompromising their intrinsic properties, introducing processing difficulties, or resulting in excessiveresource consumption.A review will be presented on third-generation medium manganese steels, covering the role ofalloying elements, the influence of thermomechanical processes such as intercritical annealing andaustenite reversion, the concept of warm stamping, and the evolution of mechanical properties as afunction of the microstructural constituents. Finally, an alloy design strategy will be also presented. This research is partially funded by the European Union under the: --RFCS project WarP – Grant Nº 101112425.& Horizon 2020 research and innovation program, MarieSklodowska-Curie grant agreement No 101146720