Proceedings of The 3rd International Academic Conference on Research in Engineering and Technology
Year: 2024
DOI:
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Study of Some Physical Properties of FE-C-Mn-Al-Si Used in the Development of 3rd Generation Steel
Latifa Alimi, Skander Boukhezar, Nassira Sassane, Mohamed Boulkra, Nadjette Sehab, Salah Oudjertli
ABSTRACT:
Metallic materials have an extraordinary future ahead of them because they exhibit very desirable physical, chemical and mechanical properties in all areas. Looking at the growing interest in eco-design and sustainable development, they will undoubtedly create the materials of tomorrow, particularly due to their strong recyclability and durability. In order to achieve the goal of reducing vehicle weight and meeting competition in the aluminum-magnesium industry, the research and development of advanced high-strength steel (AHSS) has become particularly important. Medium Mn Steel is a 3rd generation steel used in light automotive manufacturing, among other things to reduce CO2 emissions. The objective of our work is the development of certain grades of Medium Mn Steel (Fe-C-Mn-Al-Si) by varying the contents of the alloying elements, and using a new scheme/protocol which combines hot forging and inter critical annealing. The optimal strength/ductility combination in order to increase the product (maximum strength X maximum elongation) is the objective sought in our investigation. In this article we present the result of ATD/ATG/DSC enthalpy analyzes carried out on low carbon steel with a C close to 0.05%. Some physical properties, such as the Curie point, melting temperature, crystallinity rate Xc, mass loss are calculated, discussed and compared with the results found in the literature.
keywords: AHSS, Medium Mn Steel, Thermo-mechanical processing, DSC, ATG, Physical properties