Guangfa Cui, Mingzhe Xi, Haoyang Zhou, Shuai Chen, Kun Cheng. Microstructure and Mechanical Properties of Heat-Treated TC17 Titanium Alloy Formed via Point-Mode Forging Laser Deposition[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0316003
- Laser & Optoelectronics Progress
- Vol. 59, Issue 3, 0316003 (2022)
Fig. 1. Schematic of sediment and sampling location
Fig. 2. Schematic of size of tensile specimen
Fig. 3. Metallographic morphology of TC17 titanium alloy of point-mode forging laser deposition
Fig. 4. Low-magnification and high-magnification structures of different heat treatment processes. (a1) 610 ℃/1 h, air cooling (AC)， 50×; (b1) 730 ℃/1 h,AC, 50×; (c1) 850 ℃/1 h,AC, 50×; (a2) 610 ℃/1 h,AC, 1000×; (b2) 730 ℃/1 h,AC, 1000×; (c2) 850 ℃/1 h,AC, 1000×
Fig. 5. Schematic of location of microhardness test points
Fig. 6. L-direction hardness changes under different conditions
Fig. 7. T-direction hardness changes under different conditions
Fig. 8. Room temperature tensile stress-strain curves in L- direction
Fig. 9. Room temperature tensile stress-strain curves in T- direction
Fig. 10. Dimple morphology of fracture center in as-deposited state and different annealed states. (a) As-deposited state; (b) annealing at 610 ℃/1 h; (c) annealing at 730 ℃/1 h; (d) annealing at 850 ℃/1 h
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Table 1. Experimental process parameters of point-mode forging laser direct deposition
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