Xin Jijun, Fang Chao, Yang Wuxiong, Wang Shanlin, Dai Wenhua, Wei Jing, Wu Jiefeng, Song Yuntao. Study on Cracks and Microstructures of IC10 Single Crystal Superalloys by Laser Welding[J]. Chinese Journal of Lasers, 2018, 45(8): 802002
- Chinese Journal of Lasers
- Vol. 45, Issue 8, 802002 (2018)
Fig. 1. Microstructure of IC10 single crystal superalloy
Fig. 2. Weld appearances under different welding speeds. (a) Surface; (b) back
Fig. 3. X-ray examination film of welding joint
Fig. 4. Cross-sectional appearances of welds under different welding speeds. (a) 4.0 m·min-1; (b) 3.6 m·min-1; (c) 3.2 m·min-1; (d) 3.0 m·min-1
Fig. 5. Microstructures of welding joint. (a) Near left of weld fusion line; (b) near right of weld fusion line; (c) center of weld
Fig. 6. Microstructures in central area of welds under different welding speeds. (a) 4.0 m·min-1; (b) 3.6 m·min-1; (c) 3.2 m·min-1; (d) 3.0 m·min-1
Fig. 7. Solidification cracks in center of welds
Fig. 8. SEM images of transverse cracks of joint welds at different areas. (a) Extending along columnar crystal boundary; (b) extending along cellular crystal boundary
Fig. 9. EBSD analysis results of joint
Fig. 10. Misorientation distribution of joint grains
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Table 1. Chemical compositions of IC10 single crystal superalloy (mass fraction, %)
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