Effect of Processing Parameters on Ti6Al4V-10%B<sub>4</sub>C Composite Material Prepared Using Selective Laser Melting

Xianpeng Gao; Junqiang Xu; Qi Zhou; Xusheng Qian; Zixiong Lin; Minglang Zhang

doi:10.3788/CJL202148.1402012

Chinese Journal of Lasers, Volume. 48, Issue 14, 1402012(2021)

Effect of Processing Parameters on Ti6Al4V-10%B₄C Composite Material Prepared Using Selective Laser Melting

Xianpeng Gao^1,2, Junqiang Xu^1,2, Qi Zhou^1,2、*, Xusheng Qian¹, Zixiong Lin³, and Minglang Zhang¹

¹School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China

²Key Laboratory of Controlled Arc Intelligent Additive Technology, Ministry of Industry and Information Technology, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China

³Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Xiamen, Fujian 361000, China

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Figures & Tables(11)

Fig. 1. Morphologies of Ti6Al4V and B₄C powders. (a) Ti6Al4V; (b) B₄C

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Fig. 2. Morphology of Ti6Al4V and B₄C mixed powder

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Fig. 3. Schematic of sample scanning areas

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Fig. 4. Surface morphologies and roughness of Ti6Al4V-10%B₄C composite material prepared under different laser energy densities. (a)--(f) Surface morphologies; (g) R_a and R_z

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Fig. 5. Relative density of Ti6Al4V-10%B₄C composite material

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$X-ray diffraction patterns. (a) B4C and Ti6Al4V; (b) Ti6Al4V-10%B4C composite material$

Fig. 6. X-ray diffraction patterns. (a) B₄C and Ti6Al4V; (b) Ti6Al4V-10%B₄C composite material

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Fig. 7. Morphologies of Ti6Al4V-10%B₄C composite material. (a)(b) Clustered and reticular TiB₂-TiC; (c) clustered TiB₂-TiC; (d) reticular TiB₂-TiC

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Fig. 8. Comparison of EBSD results between Ti6Al4V sample and Ti6Al4V-10%B₄C composite. (a) Ti6Al4V; (b) Ti6Al4V-10%B₄C composite material

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Fig. 9. Comparison of microhardness of 6 groups of composite material samples and Ti6Al4V

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Table 1. Chemical composition of Ti6Al4V titanium alloy powder
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Table 1. Chemical composition of Ti6Al4V titanium alloy powder
Element Fe C N H O Al V Ti
Mass fraction/% ≤0.30 ≤0.10 ≤0.05 ≤0.015 ≤0.20 5.5--6.8 3.5--4.5 Bal.

Table 2. SLM process parameters of Ti6Al4V-10%B₄C composite material

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Table 2. SLM process parameters of Ti6Al4V-10%B₄C composite material

Sample number	Laser power /W	Laser scanning speed /(mm·s^-1)	Layer thickness /mm	Scan track spacing /mm	Laser energy density /(J·mm^-3)
1	140	750	0.04	0.08	58.33
2	160	750	0.04	0.08	66.67
3	150	625	0.04	0.08	75
4	140	500	0.04	0.08	87.5
5	160	500	0.04	0.08	100
6	160	437	0.04	0.08	114.3

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Xianpeng Gao, Junqiang Xu, Qi Zhou, Xusheng Qian, Zixiong Lin, Minglang Zhang. Effect of Processing Parameters on Ti6Al4V-10%B₄C Composite Material Prepared Using Selective Laser Melting[J]. Chinese Journal of Lasers, 2021, 48(14): 1402012

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