1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, P. R. China
2. State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, P. R. China
3. Laboratory of Bulk Nanostructured Materials, Belgorod State University, Belgorod, 308015, Russia
4. Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN, 37996, USA