Abstract
The effect of heat-treatment temperature on the interfacial reaction between MnO-SiO2-FeO oxide and Fe-Mn-Si alloy was investigated by the diffusion couple method in the temperature range of 1173–1573 K. The reaction at the interface between the alloy and oxide was not obvious during treatment at 1173 K, but, with increasing heat-treatment temperature, the interfacial reaction was strengthened and the proportion of the MnO·SiO2 phase in the oxide increased. The width of the particle-precipitation zone in the alloy increased with increasing temperature from 1173 K to 1473 K but decreased at 1573 K owing to coarsening of the precipitated particles. In addition, Mn2+ and Si4+ in the oxide significantly diffused into the alloy at 1573 K, resulting in an obvious increase of the Mn and Si contents in the alloy near the interface.
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This research was supported by the National Natural Science Foundation of China (Grant Nos. 51574020, 51674023 and 51604201).
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Zhang, X., Yang, S., Liu, C. et al. Effect of Heat-Treatment Temperature on the Interfacial Reaction Between Oxide Inclusions and Si-Mn Killed Steel. JOM 70, 958–962 (2018). https://doi.org/10.1007/s11837-018-2738-y
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DOI: https://doi.org/10.1007/s11837-018-2738-y