Gang Wang, Yaping Liu, Yunzhuo Lu, Haitao Xu, Rongyun Zhang, Zhongjia Huang. Influence of Process Parameter on Microstructure and Crystallization Behavior of Fe-Based Alloy Processed by Laser Rapid Forming[J]. Laser & Optoelectronics Progress, 2018, 55(4): 041403
- Laser & Optoelectronics Progress
- Vol. 55, Issue 4, 041403 (2018)
Fig. 1. Analysis of Fe-based alloy powder sample. (a) XRD result; (b) particle size distribution
Fig. 2. Surface morphologies of Fe-based alloy samples formed by laser rapid forming under different scanning speeds. (a) 400 mm·min-1; (b) 600 mm·min-1; (c) 1000 mm·min-1
Fig. 3. Morphologies of fusion zone and heat affected zone of Fe-based alloy in process of laser rapid forming under different scanning speeds. (a)-(c) 400 mm·min-1; (d)-(f) 600 mm·min-1; (g)-(i) 1000 mm·min-1
Fig. 4. XRD patterns of Fe-based alloy formed by laser rapid forming
Fig. 5. Thermal cycling curves of fusion zone under different scanning speeds when laser power is 1200 W
Fig. 6. Thermal cycling curves of heat affected zone under different scanning speeds when laser power is 1200 W
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Table 1. Chemical compositions of precipitated phases in fusion zone and heat affected zone (atomic fraction, %)
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