Study on the Interfacial Reactions between an Fe–Mn–Si Alloy and Complex Oxides Containing FeO during Isothermal Heating
Abstract
:1. Introduction
2. Experimental Methods
3. Results
3.1. Effects of FeO on Solid–Solid Interfacial Reactions between the Alloy and Oxide after Isothermal Heating at 1273 K.
3.2. Effects of FeO on Solid–Liquid Interfacial Reactions between the Alloy and Oxide after Isothermal Heating at 1473 K
4. Discussion
4.1. Interfacial Reaction Mechanism between the Alloy and Oxide
4.2. Dynamic Calculation Model
5. Conclusions
- During isothermal heating at 1273 and 1473 K, “solid–solid” and “solid–liquid” alloy–oxide reactions occurred in A-1-x and A-2-x diffusion couples, respectively.
- With an increase in the initial FeO content in the oxide, the PPZ, MDZ, and SDZ widths increased in A-1-x and A-2-x diffusion couples after heating.
- Diffused oxygen from the oxide reacting with elemental Mn and Si in the alloy plays a dominant role in the A-1-x diffusion couple during heating, whereas in the case of A-2-x, the dominant reaction is elemental Si in the alloy reacting with MnO in the oxide.
- A modified dynamic calculation model was established and verified to achieve better understanding on the interfacial reaction mechanism between the Fe–Mn–Si alloy and the CaO–SiO2–Al2O3–MgO–MnO–FeO oxide with different FeO content during isothermal heating.
Acknowledgments
Author Contributions
Conflicts of Interest
References
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No. | Fe–Mn–Si Alloy/Mass Percent (pct) | |||||
---|---|---|---|---|---|---|
Mn | Si | Fe | S | |||
A | 0.60 | 1.31 | 98.09 | 0.0023 | ||
No. | CaO–SiO2–Al2O3–MgO–MnO–FeO oxide/mass pct | |||||
CaO | SiO2 | Al2O3 | MgO | MnO | FeO | |
1-0 | 27.10 | 43.00 | 13.70 | 5.80 | 10.40 | 0.00 |
1-1 | 26.83 | 42.57 | 13.56 | 5.74 | 10.30 | 1.00 |
1-2 | 26.29 | 41.71 | 13.29 | 5.63 | 10.09 | 3.00 |
1-3 | 25.75 | 40.85 | 13.02 | 5.51 | 9.88 | 5.00 |
2-0 | 26.70 | 39.30 | 12.90 | 5.40 | 15.70 | 0.00 |
2-1 | 26.43 | 38.91 | 12.77 | 5.35 | 15.54 | 1.00 |
2-2 | 25.90 | 38.12 | 12.51 | 5.24 | 15.23 | 3.00 |
2-3 | 25.37 | 37.34 | 12.26 | 5.13 | 14.92 | 5.00 |
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Liu, C.; Ye, F.; Zhang, H.; Liu, X.; Wang, B. Study on the Interfacial Reactions between an Fe–Mn–Si Alloy and Complex Oxides Containing FeO during Isothermal Heating. Metals 2018, 8, 251. https://doi.org/10.3390/met8040251
Liu C, Ye F, Zhang H, Liu X, Wang B. Study on the Interfacial Reactions between an Fe–Mn–Si Alloy and Complex Oxides Containing FeO during Isothermal Heating. Metals. 2018; 8(4):251. https://doi.org/10.3390/met8040251
Chicago/Turabian StyleLiu, Chengsong, Fei Ye, Hua Zhang, Xiaoqin Liu, and Bao Wang. 2018. "Study on the Interfacial Reactions between an Fe–Mn–Si Alloy and Complex Oxides Containing FeO during Isothermal Heating" Metals 8, no. 4: 251. https://doi.org/10.3390/met8040251