1. School of Physical Engineering, Zhengzhou University, Zhengzhou 450052, China
2. School of Physical and Engineering, Henan University of Science and Technology, Luoyang 471023, China
3. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China
4. Collaborative Innovation Center of Nonferrous Metals, Henan University of Science and Technology, Luoyang 471003, China
5. Department of Mechanical Engineering, University of South Florida, Tampa, Florida 33620, USA