Wenjuan Hua, Jianxun Zhang. Defect and Quality Control of GH3536 Super Alloy Fabricated via Laser Selective Melting[J]. Laser & Optoelectronics Progress, 2024, 61(5): 0514008
- Laser & Optoelectronics Progress
- Vol. 61, Issue 5, 0514008 (2024)
Fig. 1. Particle size test results of powder
Fig. 2. Morphology of GH3536 alloy powder
Fig. 3. Light microscope results of sample under different laser powers. (a) 180 W; (b) 220 W; (c) 260 W; (d) 285 W; (e) 300 W
Fig. 4. Light microscope results of sample under different scanning speeds. (a) 700 mm/s; (b) 900 mm/s; (c) 1100 mm/s; (d) 1300 mm/s; (e) 1500 mm/s; (f) 1700 mm/s; (g) 1900 mm/s
Fig. 5. Light microscope results of sample under different scanning spacings. (a) 0.1 mm; (b) 0.14 mm; (c) 0.18 mm; (d) 0.2 mm; (e) 0.22 mm
Fig. 6. Relationship between energy density and relative density
Fig. 7. Relationship between energy density and internal defect type of sample
Fig. 8. Photos of polished sample. (a) Optical microscope photograph when Ev=62.83 J/mm3; (b) optical microscope photograph when Ev=43.98 J/mm3; (c) scanning electron microscope photograph when Ev=43.98 J/mm3
Fig. 9. Results of high precision industrial CT. (a) Ev=80.25 J/mm3; (b) Ev=62.83 J/mm3; (c) Ev=55.56 J/mm3; (d) Ev=41.91 J/mm3; (e) Ev=43.98 J/mm3
Fig. 10. Relation between energy density and defect size
|
Table 1. Chemical composition of alloy powder
|
Table 2. Parameters of forming process
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