[1] [1] Wen S F, Ji X T, Zhou Y, et al. Development status and prospect of selective laser melting of mould steels［J］. Laser & Optoelectronics Progress, 2018, 55(1): 011404.

[2] [2] Zhang H, Nie X J, Zhu H H, et al. Study on high strength Al-Cu-Mg alloy fabricated by selective laser melting［J］. Chinese Journal of Lasers, 2016, 43(5): 0503007.

[3] [3] Chen H Y, Gu D D, Gu R H, et al. Microstructure evolution and mechanical properties of 5CrNi4Mo die steel parts by selective laser melting additive manufacturing［J］. Chinese Journal of Lasers, 2016, 43(2): 0203003.

[4] [4] Wen S F, Li S, Wei Q S, et al. Effect of molten pool boundaries on the mechanical properties of selective laser melting parts［J］. Journal of Materials Processing Technology, 2014, 214(11): 2660-2667.

[5] [5] Li R D, Shi Y S, Wang Z G, et al. Densification behavior of gas and water atomized 316L stainless steel powder during selective laser melting［J］. Applied Surface Science, 2010, 256(13): 4350-4356.

[6] [6] Engeli R, Etter T, Hvel S, et al. Processability of different IN738LC powder batches by selective laser melting［J］. Journal of Materials Processing Technology, 2016, 229: 484-491.

[7] [7] Spierings A B, Herres N, Levy G. Influence of the particle size distribution on surface quality and mechanical properties in AM steel parts［J］. Rapid Prototyping Journal, 2011, 17(3): 195-202.

[8] [8] Wen S F, Wu X L, Zhou Y, et al. Microstructure and property of S136 mould steel fabricated by selective laser melting［J］. Journal of Huazhong University of Science and Technology (Nature Science Edition), 2018, 46(2): 51-55.

[9] [9] Krakhmalev P, Yadroitsava I, Fredriksson G, et al. In situ heat treatment in selective laser melted martensitic AISI 420 stainless steels［J］. Materials & Design, 2015,87: 380-385.

[10] [10] Simchi A. Direct laser sintering of metal powders: Mechanism, kinetics and microstructural features［J］. Materials Scienceand Engineering A, 2006, 428(1/2): 148-158.

[11] [11] Hao L, Dadbakhsh S. Materials and process aspects of selective laser melting of metals and metal matrix composites: A review(invited paper)［J］. Chinese Journal of Lasers, 2009,36(12): 3192-3203.

[12] [12] Ye D N, Zhang J M. Haphazard packing of spheres［J］.Chinese Journal of Geology, 1990,25(2): 127-136.

[13] [13] Jain A, Basu B, Kumar B V M, et al. Grain size-wear rate relationship for titanium in liquid nitrogen environment［J］. Acta Materialia, 2010, 58(7): 2313-2323.

[14] [14] Sun Y, Moroz A, Alrbaey K. Sliding wear characteristics and corrosion behaviour of selective laser melted 316L stainless steel［J］. Journal of Materials Engineeringand Performance, 2014, 23(2): 518-526.

[15] [15] Fang Z, Zhang L, Wu Y S, et al. Mechanism of SCC of austenitic 304SS in HCl-NaCl solutions at ambient temperature［J］. Corrosion Science and Protection Technique, 1995, 7(1): 42-46.

[16] [16] Lu Y Y, Liu J H, Gong B, et al. Corrosion properties of 308L stainless steel in chloride solution［J］. Dongfang Turbine, 2012(3): 45-50.

[17] [17] Bai X D. Corrosion and control of materials［M］. Beijing: Tsinghua University Press, 2005: 122-125.

[18] [18] Sasaki K, Burstein G T. The generation of surface roughness during slurry erosion-corrosion and its effect on the pitting potential［J］. Corrosion Science, 1996, 38(12): 2111-2120.