1. Y.T. Pei, J.H. Ouyang, T.Q. Lei. Materials review, 1995, (4): 60-66. in Chinese. (in Chinese).
2. R.X. Liu, T.Q. Lei, L.X. Guo. Materials Science and Technology, 2004, 12(5): 524-528. (in Chinese).
3. X.H. Fan, L. Geng. China surface engineering. 2006, 19(1): 28-32. (in Chinese).
4. S. Zhang, C.H. Zhang, W.T. Wu, M.C. Wang. Acta Metal Sinica, 2001, 37(3): 315-320. (in Chinese).
5. Y. S. Tian, C. Z. Chen, L. B. Chen, J. H. Liu, T. Q. Lei. Journal of Materials Science, 2005, 40(16): 4387-4390.