Shaohua Xu, Dianwu Zhou, Jinshui Liu. Microstructure and Mechanical Properties of Adding Ti Powder Weld Joint in Dual-Phase Steel to Aluminum Alloy Under Process Condition of Laser Deep Fusion Welding[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0314007
- Laser & Optoelectronics Progress
- Vol. 59, Issue 3, 0314007 (2022)
Fig. 1. Schematic of steel/Al laser welding
Fig. 2. Macroscopic morphology of steel/Al weld surface. (a) Without Ti powder; (b) with Ti powder
Fig. 3. Microstructures of steel/Al joint. (a) Without Ti powder; (b) with Ti powder
Fig. 4. Elements distributions of steel/Al joint. (a) Al distribution without Ti powder; (b) Al distribution with Ti powder; (c) Ti distribution with Ti powder
Fig. 5. Grain size and distribution in weld zone of steel/Al joint. (a) Without Ti powder; (b) with Ti powder
Fig. 6. Element characteristic spectral line. (a) Without Ti powder; (b) with Ti powder
Fig. 7. Elements characteristics spectral lines in the band of 370‒410 nm. (a) Without Ti powder; (b) with Ti powder
Fig. 8. Spectral line fitting results with and without Ti powder
Fig. 9. Fracture positions of shear specimen of steel/Al joint. (a) Without Ti powder; (b) with Ti powder
Fig. 10. Fracture morphologies of shear specimen of steel/Al joint. (a) Without Ti powder; (b) with Ti powder
Fig. 11. EDS analysis of different positions of steel/Al joint. (a) (d) Scanning positions with and without Ti powder; (b) (e) scanning line Ⅰ; (c) (f) scanning line Ⅱ
Fig. 12. SEM images of interface layer of steel/Al joint. (a) (c) Without powder; (b) enlarged view of area Q1; (d) enlarged view of area Q2
Fig. 13. XRD spectra of steel/Al joint. (a) Without Ti powder; (b) with Ti powder
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Table 1. EDS analysis of different areas of steel/Al joint
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