Table 1.

Research on RE oxide metallurgical technology.

Carbon Content/%	Carbon Equivalent	Rare Earth Elements and Content/%	Rare Earth Inclusions	Microstructure	Author	Time
0.12	0.27	0.02 Ce	Ce2O2S + CeAlO3	BF, P, IAF	Wen et al.	2012 [61]
0.04	0.30	0.0014 (Ce-La)	Ti-RE-Zr complex oxide	AF	Nako et al.	2015 [62]
0.15	0.41	0.006 Ce + 0.003 La	(La-Ce-Ca-Al-Mg-S) complex oxide	PF, F	Chu et al.	2018 [63]
0.12	0.34	0.021 (Ce-La)	RE2O2S + MnS	AF, GBF	Song et al.	2019 [64]
0.05	0.36	0.05 Ce	CeAlO3	AF, B	Cao et al.	2019 [10]
0.17	0.40	0.02 La	La2O2S + MnS	AF, FSP, GBF	Xie et al.	2020 [65]

Abbreviations: BF, block ferrite; P, pearlite; IAF, intragranular acicular ferrite; AF, acicular ferrite; GBF, grain boundary ferrite; B, bainite; FSP, ferrite side plate.