1. Henan Province Industrial Technology Research Institute of Resources and Materials Zhengzhou University 450001 Zhengzhou China
2. School of Material Science and Engineering Zhengzhou University 450001 Zhengzhou China
3. School of Metallurgical and Ecological Engineering University of Science and Technology 100083 China
4. National Engineering Laboratory of Vacuum Metallurgy Kunming University of Science and Technology 650093 Kunming China