Yun Zhao, Guorui Zhao, Wenyou Ma, Li Zheng, Min Liu. Study on Process ,Structure, and Properties of Nickel Selective Laser Melting[J]. Laser & Optoelectronics Progress, 2020, 57(17): 171402
- Laser & Optoelectronics Progress
- Vol. 57, Issue 17, 171402 (2020)
Fig. 1. Ni powder. (a) Ni solid sample; (b) laser selection melting scanning strategy
Fig. 2. Ni powder. (a) Pure Ni particle size distribution; (b) pure Ni powder
Fig. 3. Effect of line energy density on surface roughness
Fig. 4. Effect of laser line energy density and scanning distance on block density. (a) Laser line energy density; (b) hatch distance
Fig. 5. Principle of track overlap
Fig. 6. Microstructure of the sample under the different laser energy densities.(a)192.7 J/m;(b)(c) 244.8 J/m;(d) 296.9 J/m
Fig. 7. Sample phase analysis. (a) Ni powder, X-Y plane, and Y-Z plane; (b) (111) peak; (c) (200) peak; (d) (220) peak
Fig. 8. Y-Z and X-Y plane morphology of SLM formed Ni under OM and SEM. (a)(b) Y-Z plane under OM; (c)(d) X-Y plane under OM; (e) Y-Z plane under SEM;(f) X-Y plane under SEM
Fig. 9. Hardness of the sample under different energy densities. (a)Y-Z plane ;(b) X-Y plane
Fig. 10. Mechanical performance results. (a) Dimension of the tensile samples; (b) Stress-strain curve of the optimal process Ni sample
Fig. 11. Tensile fracture of SLM sample under the best parameter
Fig. 12. Polarization curves of nickel electrodes under the different energy densities
|
Table 1. Experimental scheme
|
Table 2. Characteristics of raw powder materials used in the experiment
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20