Effects of Ni Interlayer on Microstructure and Properties of Fusion Welded Joints of Magnesium/Aluminum Alloys

2020 ◽  
Vol 47 (7) ◽  
pp. 0702001
Author(s):  
张书迈 Zhang Shumai ◽  
张福全 Zhang Fuquan ◽  
周惦武 Zhou Dianwu ◽  
刘金水 Liu Jinshui ◽  
周鹤 Zhou He
Keyword(s):  
Aluminum Alloys ◽  
Welded Joints ◽  
Microstructure And Properties ◽  
Ni Interlayer ◽  
Fusion Welded Joints

scholarly journals Non-contact in-process ultrasonic screening of thin fusion welded joints

2021 ◽  
Vol 64 ◽  
pp. 445-454
Author(s):  
Momchil Vasilev ◽  
Charles MacLeod ◽  
Walter Galbraith ◽  
Yashar Javadi ◽  
Euan Foster ◽  
...  
Keyword(s):  
Welded Joints ◽  
Fusion Welded Joints

scholarly journals Effect of pulse frequency on laser welding on SiCp/6061 aluminum alloys with powder

2021 ◽  
Vol 2079 (1) ◽  
pp. 012022
Author(s):  
Yongchao Jian ◽  
Yan Shi
Keyword(s):  
Tensile Strength ◽  
Aluminum Alloys ◽  
Laser Welding ◽  
Base Metal ◽  
Welded Joints ◽  
Molten Pool ◽  
Particle Distribution ◽  
Pulse Frequency ◽  
Uneven Distribution

Abstract Because of the uneven distribution of reinforcement particles in the molten pool during laser welding of SiCp/6061Al composites with powder, the effect of pulse frequency on the homogenization was studied in this paper. The pulse frequency of welding is changed and the macro morphology of the weld is studied by metallographic microscope. The particle uniformity of reinforcing phase and the porosity of molten pool at different frequencies were compared. The tensile strength of welded joints at different frequencies was tested by universal tensile machine. Finally, when the pulse frequency is 160Hz, the particle distribution of reinforcing phase is the most uniform and the tensile strength is the largest. The tensile strength reaches 267.06MPa, reaching 69.1% of the base metal. When the pulse frequency is 320Hz, the porosity of the weld is the lowest, reaching 1.75%.

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