Kezhao Zhang, Chaowei He, Yuyang Lin, Chunyan Yan, Ke Yang, Yefeng Bao. Microstructures and Mechanical Properties of Laser Cladding Repaired 5A06 Alloys[J]. Laser & Optoelectronics Progress, 2020, 57(23): 231409
- Laser & Optoelectronics Progress
- Vol. 57, Issue 23, 231409 (2020)
Fig. 1. Schematic of laser cladding repairing process and sampling position of tensile specimen. (a) Laser cladding repairing process; (b) sampling position of tensile specimen
Fig. 2. Microstructure of base metal. (a) Microstructural characteristics; (b) EDS analysis of strengthening phase
Fig. 3. Morphology of AlSi10Mg powder. (a) Overall morphology; (b) magnified morphology
Fig. 4. Influence of parameters on microstructures of heat affected zone. (a) Base metal; (b) P1; (c) P2; (d) P3
Fig. 5. Grain morphology in repaired zone. (a) Near heat affected zone; (b) within transition zone; (c) within cladding layer
Fig. 6. Microstructures of repaired zones under different parameter combinations. (a) P1; (b) P2; (c) P3
Fig. 7. Distributions of Al and Si elements in repaired zone. (a) Morphology of repaired zone; (b) distribution of Al element; (c) distribution of Si element
Fig. 8. Al-Si binary phase diagram [25]
Fig. 9. Defects in repaired zones under different parameter combinations. (a) P1; (b) P2; (c) P3
Fig. 10. Morphologies of base metal and tensile fracture repaired samples under different parameter combinations. (a) Base metal; (b) P1; (c) P2; (d) P3
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Table 1. Parameters used in laser cladding repairing process
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Table 2. Chemical compositions of base metal and filler powder(mass fraction,%)
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Table 3. Tensile properties of 5A06 base metal and repaired samples at room temperature
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