Abstract Mill scale is a waste material arises during the continuous casting of steel. It contains approximately 70% iron by mass. Mill scale is used as an iron source in many applications to reduce costs. In this study, it was aimed to produce FeCo alloy through the metallothermic reduction of mill scale and Co3O4. The metallothermic reduction was chosen because of its advantages such as minimum energy need, short process time and no need for high-tech equipment. The system was thermochemically simulated with FactSage and HSC software. In the experimental studies, the effects of the use of aluminium, as a reductant, in different stoichiometries on total metal recovery yield were investigated. The effects of aluminium stoichiometry on hardness and microstructure were also investigated. As a result of the experimental studies, it was seen that highest metal recovery yields were obtained as 81.25% for iron and 93.78% for cobalt with the mixture including 105% stoichiometric aluminium.

中文翻译：

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从氧化皮到金属热还原的 FeCo 合金的热力学建模和生产

摘要 氧化皮是钢连铸过程中产生的一种废料。它含有大约 70% 的铁质量。在许多应用中，氧化皮被用作铁源以降低成本。本研究旨在通过氧化皮和 Co3O4 的金属热还原来生产 FeCo 合金。之所以选择金属热还原，是因为它具有能源需求最低、处理时间短和不需要高科技设备等优点。该系统使用 FactSage 和 HSC 软件进行热化学模拟。在实验研究中，研究了使用不同化学计量的铝作为还原剂对总金属回收率的影响。还研究了铝化学计量对硬度和微观结构的影响。作为实验研究的结果，