| Title | A Feasibility Study to Minimize the Carbon Footprint of Cast Iron Production While Maintaining the Technical Requirements |
|---|---|
| ID_Doc | 26418 |
| Authors | Abdelshafy, A; Franzen, D; Mohaupt, A; Schüssler, J; Bührig-Polaczek, A; Walther, G |
| Title | A Feasibility Study to Minimize the Carbon Footprint of Cast Iron Production While Maintaining the Technical Requirements |
| Year | 2023 |
| Published | Journal Of Sustainable Metallurgy, 9, 1 |
| Abstract | The industrial sector is responsible for significant amounts of CO2 emissions. Although research activities have already given their attention to major industries such as steel, small sectors such as metal casting have been overlooked. Therefore, there are evident knowledge gaps regarding the environmental impact of the foundry industry and the possibilities of decarbonizing the sector. Herein, this study focuses on the CO2 emissions associated with cast iron production and introduces an interdisciplinary framework in order to study the environmental impact, technical performance and production costs. The theoretical and experimental analyses illustrate the interconnections between the environmental, technical and economic aspects of cast iron production. The results emphasize the role of the smelting process and renewable energies in decreasing the carbon footprint. In terms of the input materials, the outcomes demonstrate that increasing the steel scrap content achieves considerable reductions in the CO2 emissions. An alloy composition with a steel scrap content of 25% leads to a minimum carbon footprint of 650 kg CO2 eq./ton. However, increasing the steel scrap content further results in higher carbon footprints due to the additional materials required to maintain the alloy composition. Moreover, a higher strength and lower ductility of the alloy were recorded due to higher amounts of carbide stabilizing elements. The study highlights the importance of adopting a holistic approach in order to define the optimal material combinations. Hence, the presented interdisciplinary approach can be applied by the foundries in order to achieving the technical, economic and ecological goals of the sector. [GRAPHICS] |
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