1. State Key Laboratory of Advanced Metallurgy; University of Science and Technology Beijing; No. 30 Xueyuan Road Beijing 100083 P. R. China
2. School of Metallurgical and Ecological Engineering; University of Science and Technology Beijing; No. 30 Xueyuan Road Beijing 100083 P. R. China
3. Fangda Special Steel Technology Co., Ltd.; Nanchang 330012 Jiangxi Province, P. R. China
4. Xingtai Iron and Steel Co., Ltd.; Xingtai 054027 Hebei Province, P. R. China
5. Xuanhua Iron and Steel Group Co., Ltd.; Zhangjiakou 075100 Hebei Province, P. R. China