[1] [1] Wan X R, Xu C G. High strength steel and ultra-high strength steel［M］. Beijing: China Machine Press, 1988.

[2] [2] Zhuang M X, Li X M, Xu M, et al. Vacuum electron beam welding technology research on 30CrMnSiNi2A ultra-high strength steel［J］. Aeronautical Manufacturing Technology, 2017(6): 100-104.

[3] [3] General Aviation Manufacturing Engineering Handbook Editorial Board. Welding［M］. Beijing: Aviation Industry Press, 1996.

[4] [4] Zhang Z Q, Chen Z H, Cao Q, et al. Repairing of 30CrMnSiNi2A high strength steel by laser cladding［J］. Equipment Environmental Engineering, 2016,13(1): 62-67.

[5] [5] Song J L, Li Y T, Deng Q L, et al. Research progress of laser cladding forming technology［J］. Journal of Mechanical Engineering, 2010,46(14): 29-38.

[6] [6] Zhou X W, Wang X Z. Laser process technology——Laser cladding［J］. Modern Physics, 2005, 17(4): 45-48.

[7] [7] Wu R, Xi C S, Hu M L, et al. Laser-melted surface layer steal X165CrMoVl2-l and its tempering characteristics［J］. Materials Science and Engineering, 2000, 278(1/2): 1-4.

[8] [8] Abbas G, West D R F. Laser surface cladding of Stellite and Stellite-SiC composite deposits for enhanced hardness and wear［J］. Wear, 1991,143(2): 353-363.

[9] [9] Hu Q W, Yang T P, Li Z Y, et al. Study laser cladding of copper alloy Mg-based metal matrix composite［J］. Applied Laser, 2001, 21(4): 247-250.

[10] [10] Ding Y X, Wu J L. Influence of laser cladding parameters on microstructure and properties of cladding layer［J］. Material & Heat Treatment, 2010, 39(2): 94-96.

[11] [11] Ren C, Li Z G, Shu D, et al. Microstructure and water erosion resistance property of Stellite6 coating by laser cladding on 17-4PH stainless steel surface［J］. Chinese Journal of Lasers, 2017, 44(4): 0402010.

[12] [12] Lin H, Yang Y Q, Zhang G Q. Tribological performance of medical CoCrMo alloy fabricated by selective laser melting［J］. Acta Optica Sinica, 2016, 36(11): 1114003.

[13] [13] Dong S Y, Ma Y Z, Xu B S, et al. Current status of material for laser cladding［J］. Materials Review, 2006, 20(6): 8.

[14] [14] Li C Y, Zhang S, Kang Y P, et al. Comment on material system for laser cladding［J］. Laser Journal, 2002, 23(3): 5-9.

[15] [15] Tian N L, Du R J, Zhou C Z. Study on stress status of WC doped Ni-based alloy by laser cladding［J］. Chinese Journal of Lasers, 2004, 31(4): 505-508.

[16] [16] Zan S P, Jiao J K, Zhang W W. Study on laser cladding process of 316L stainless steel powder［J］. Laser & Optoelectronics Progress, 2016,53(6): 061406.

[17] [17] Liu M F, Liu S X. Manual of mechanical properties of metal materials［M］. Beijing: China Machine Press, 2012.

[18] [18] Li Z H. Study on optimization of heat treatment process for 30CrMnSiNi2A steel［J］. Material & Heat Treatment, 2008, 37(24): 97-100.

[19] [19] Zhang L, Zhang Y F, Huo L X, et al. Microstructure and properties of 30CrMnSiNi2A steel electron beam welded joints［J］. Transactions of the China Welding Institution, 2002, 23(1): 73-75.

[20] [20] Lei H D, Huang W R, Guo P, et al. Study on metallographic structure and property of welded joint for laser beam welding of the quenched and tempered 30CrMnSiA［J］. Applied Laser, 2003, 23(6): 322-326.