[3] [3] WANG Z M, GUAN K, GAO M, et al. The microstructure and mechanical properties of deposited-IN718 by selective laser melting［J］. Journal of Alloys and Compounds, 2012, 513: 518-523.

[4] [4] YAO Y Z, HUANG Y H, CHEN B, et al. Influence of processing parameters and heat treatment on the mechanical properties of 18Ni300 manufactured by laser based directed energy deposition［J］. Optics & Laser Technology, 2018, 105: 171-179.

[5] [5] YIN S, CHEN C Y, YAN X C, et al. The influence of aging temperature and aging time on the mechanical and tribological properties of selective laser melted maraging 18Ni-300 steel［J］. Additive Manufacturing, 2018, 22: 592-600.

[7] [7] PANDA B N, GARG A, SHANKHWAR K. Empirical investigation of environmental characteristic of 3-D additive manufacturing process based on slice thickness and part orientation［J］. Measurement, 2016, 86: 293-300.

[8] [8] ABOULKHAIR N T, MASKERY I, TUCK C, et al. On the formation of AlSi10Mg single tracks and layers in selective laser melting: Microstructure and nano-mechanical properties［J］. Journal of Materials Processing Technology, 2016, 230: 88-98.

[11] [11] WEI K W, WANG Z M, ZENG X Y. Preliminary investigation on selective laser melting of Ti-5Al-2.5Sn α-Ti alloy: From single tracks to bulk 3D components［J］. Journal of Materials Processing Technology, 2017, 244: 73-85.

[12] [12] MA M M, WANG Z M, WANG D Z, et al. Control of shape and performance for direct laser fabrication of precision large-scale metal parts with 316L Stainless Steel［J］. Optics & Laser Technology, 2013, 45: 209-216.

[14] [14] GU D D, SHEN Y F. Effects of processing parameters on consolidation and microstructure of W-Cu components by DMLS［J］. Journal of Alloys and Compounds, 2009, 473(1-2): 107-115.

[16] [16] HOFMEISTER W, GRIFFITH M. Solidification in direct metal deposition by LENS processing［J］. JOM, 2001, 53(9): 30-34.

[17] [17] WANG D, SONG C H, YANG Y Q, et al. Investigation of crystal growth mechanism during selective laser melting and mechanical property characterization of 316L stainless steel parts［J］. Materials & Design, 2016, 100: 291-299.

[18] [18] MA M M, WANG Z M, GAO M, et al. Layer thickness dependence of performance in high-power selective laser melting of 1Cr18Ni9Ti stainless steel［J］. Journal of Materials Processing Technology, 2015, 215: 142-150.