TY  - JOUR
T2  - Journal of Mining and Metallurgy, Section B: Metallurgy
TI  - Interface interaction between complex oxides and matrix of Si-Mn deoxidized steel during heat treatment
VL  - 62
IS  - 2
SP  - 177
EP  - 193
PY  - 2026
DA  - 07 July 2026
DO  - 10.2298/JMMB260401014N
UR  - https://doi.org/10.2298/JMMB260401014N
AU  - Nie, Xinlong
AU  - Li, Shannan
AU  - Xu, Qi
AU  - Lia, Jianli
AD  - a Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan, Hubei, China; b Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking, Wuhan University of Science and Technology, Wuhan, Hubei, China; c National Key Laboratory of Advanced Refractory Materials, Wuhan, Hubei, China;
AB  - Diffusion couples were prepared using a high-temperature furnace to investigate the interfacial reactions between Si-Mn deoxidized steel and CaO-SiO2-Al2O3-MgO-MnO / CaO-SiO2-Al2O3-MgO-MnO-FeO oxide systems during heat treatment at 1273, 1373, and 1473 K for 10 hours. The effects of these reactions on the composition and phase evolution at the interface were systematically examined. Furthermore, the influence of FeO content and varying heat treatment temperature on the interfacial behavior between complex oxides and the Si-Mn deoxidized steel substrate was explored. The results indicate that, regardless of the initial FeO content in the oxide phase of the diffusion couples, precipitates consisting of SiO2 and a small amount of MnO formed in the steel matrix after heat treatment. Near the interface, a dark phase with a high SiO2 content precipitated in the oxide. The widths of the manganese-depleted zone (MDZ) and the particle precipitation zone (PPZ) were found to be approximately linearly correlated. Compared with the FeO-free system, diffusion couples containing 3 wt% FeO exhibited broader MDZ and PPZ in the steel matrix after heat treatment. The maximum widths of both the MDZ and PPZ were observed under the heat treatment condition of 1373 K for 10 hours.
KW  - Diffusion couple
KW  - Si-Mn deoxidized steel
KW  - Complex oxide
KW  - Interfacial reaction
KW  - Heat treatment
N1  - Correspondence Address: Jianli Li; Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan, Hubei, China; Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking, Wuhan University of Science and Technology, Wuhan, Hubei, China; National Key Laboratory of Advanced Refractory Materials, Wuhan, Hubei, China; email: jli@wust.edu.cn
N1  - J. Min. Metall. Sect. B-Metall., 62 (2) (2026) 177-193. doi:10.2298/JMMB260401014N
PB  - Technical Faculty in Bor
SN  - 1450-5339 (ISSN)
LA  - English
J2  - J. Min. Metall. Sect. B Metall.
M3  - Article
ER  -