1. State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization Pangang Group Research Institute Co., Ltd. Panzhihua 617000 China
2. School of Mechanical, Materials, Mechatronic and Biomedical Engineering University of Wollongong Wollongong NSW 2522 Australia
3. College of Mechanical and Electrical Engineering Central South University Changsha 410083 China
4. Baosteel Research Institute (R&D Centre) Baoshan Iron & Steel Co. Ltd. Shanghai 200431 China