Laser & Optoelectronics Progress, Volume. 58, Issue 17, 1714008(2021)
Joint Microstructure and Properties of D36 Steel Using Narrow Gap Laser Welding
Fig. 1. Schematic diagram of narrow gap laser filler wire welding
Fig. 2. Narrow gap welding groove
Fig. 3. Sampling of macroscopic cross-section and micro-hardness of weld
Fig. 4. Structure distribution of each zone of welded joint
Fig. 5. Microstructure of base metal
Fig. 6. Microstructures of weld center. (a) Low magnification ; (b) high magnification
Fig. 7. Microstructures of HAZs. (a) CGHAZ; (b) FGHAZ; (c) INZ
Fig. 8. Overlapping microstructures in weld zone. (a) Low magnification overlapping microstructure; (b) high magnification overlapping microstructure
Fig. 9. Overlapping microstructures in heat affected zone. (a) Low magnification overlapping microstructure; (b) high magnification overlapping microstructure
Fig. 10. Microhardness of different areas of weld
Fig. 11. Tensile fracture of welded joint
Fig. 12. Stress-strain curves of tensile sample
Fig. 13. Tensile fracture morphologies. (a) Macro morphology; (b) micro morphology
|
|
|
Get Citation
Copy Citation Text
Xutian Chai, Yan Yin, Zhipeng Wang, Kaiji Dong, Zhihui Li, Ruihua Zhang. Joint Microstructure and Properties of D36 Steel Using Narrow Gap Laser Welding[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1714008
Category: Lasers and Laser Optics
Received: Dec. 28, 2020
Accepted: Jan. 20, 2021
Published Online: Sep. 14, 2021
The Author Email: Yin Yan (yinyan@lut.cn)