Peng Fan, Jiateng Pan, Yiming Ge, Yu Zhan. Finite Element Analysis of Residual Stress in TC4/TC11 Titanium Alloy Gradient Material Produced by Laser Additive Manufacturing[J]. Chinese Journal of Lasers, 2021, 48(18): 1802012
- Chinese Journal of Lasers
- Vol. 48, Issue 18, 1802012 (2021)
Fig. 1. Schematic diagrams of finite element model and arrangement of feature points. (a) Model meshing; (b) arrangement of feature points
Fig. 2. Temperature distributions at different time
Fig. 3. Node temperature varying with time when transition mode is from 100%TC4 to 100%TC11
Fig. 4. Distributions of Mises stress after cooling to room temperature and residual stress of each direction. (a) Mises stress; (b) stress along scanning direction; (c) stress along overlapping direction; (d) stress along deposition direction
Fig. 5. Stress varying with time of feature points along scanning direction
Fig. 6. Residual stress distribution curves of feature points at interface under different transition modes
Fig. 7. Relationship between average residual stress and TC11 content at interface under different transition modes
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Table 1. Elastic modulus of gradient layer under different transition modes
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Table 2. Specific heat capacity of gradient layer under different transition modes
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Table 3. Transition modes and material composition of corresponding transition zone
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Table 4. Peak temperatures of nodes for different transition modes℃
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