Effect of activating flux Cr2O3 on microstructure and properties of laser welded 5083 aluminum alloys

Huang, Yue; Yuan, Yong; Feng, Yi; Liu, Jinping; Yang, Lijun; Cui, Lei

doi:10.1016/j.optlastec.2022.107930

Cited by 9 publications

(3 citation statements)

References 40 publications

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“…The dark gray phase 1 is enriched with Al and Cr. Based on the Al–Cr binary phase diagram and the molar ratio of Al and Cr in phase 1, it can be inferred as Al 8 Cr 5 phase 31–33 . The composition of the gray phase 2 is 16.25% C, 5.07% Si, 3.09% Al, 6.38% Co, 57.79% Cr, 8.22% Fe, and 3.2% Ni.…”

Section: Resultsmentioning

confidence: 99%

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Joining of C_f/SiC composites using AlCoCrFeNi_2.1 eutectic high‐entropy alloy filler by spark plasma sintering

Wang,

Ran

et al. 2024

Int J Applied Ceramic Tech

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AlCoCrFeNi2.1 eutectic high‐entropy alloy was introduced to join Cf/SiC composite by spark plasma sintering technique. The influence of holding times on microstructure, shear strength and fracture behavior of the joints was studied. When held for 7 min, the typical microstructure of the Cf/SiC‐AlCoCrFeNi2.1‐Cf/SiC joint was Cf/SiC composite → CrSi2 + FCC + Al8Cr5 + graphite → CrSi2 + FCC + Al8Cr5 → CrSi2 + FCC + Al8Cr5 + graphite → Cf/SiC composite. As the holding time extended, the Ni–Si and Fe–Si brittle phases in the joint gradually reduced, and the diffusion transition layer continued to thicken. The maximum joint strength was 23.9 MPa, which was obtained at 1450°C for 7 min. Analyzed by scanning electron microscopy and energy dispersive spectroscopy, the fracture modes of the joints joined at different holding times were all brittle fracture.

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Section: Resultsmentioning

confidence: 99%

“…Based on the Al-Cr binary phase diagram and the molar ratio of Al and Cr in phase 1, it can be inferred as Al 8 Cr 5 phase. [31][32][33] The composition of the gray phase 2 is 16.25% C, 5.07% Si, 3.09% Al, 6.38% Co, 57.79% Cr, 8.22% Fe, and 3.2% Ni. The enrichment of Co, Cr, and Fe suggests it should be the high-entropy FCC phase.…”

Section: Spotmentioning

confidence: 99%

Joining of C_f/SiC composites using AlCoCrFeNi_2.1 eutectic high‐entropy alloy filler by spark plasma sintering

Wang,

Ran

et al. 2024

Int J Applied Ceramic Tech

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“…The ductile failure of welded joints was observed at higher welding speed whereas brittle failure occurred at low welding speed. Similarly, many kinds of literature describe the effects of input parameters of the laser welding process on the weld quality parameters of different materials such as the microstructure and grain orientation [ 11 , 12 , 13 , 14 ], bead profile [ 15 ], mechanical properties [ 16 , 17 , 18 ], metallurgical properties [ 19 ], corrosion resistance [ 20 ] and residual stresses [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Fiber Laser Welded Cobalt Super Alloy L605: Optimization of Weldability Characteristics

et al. 2022

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The present study describes the laser welding of Co-based superalloy L605 (52Co-20Cr-10Ni-15W) equivalent to Haynes-25 or Stellite-25. The influence of laser welding process input parameters such as laser beam power and welding speed on mechanical and metallurgical properties of weld joints were investigated. Epitaxial grain growth and dendritic structures were visible in the weld zone. The phase analysis results indicate the formation of hard phases like CrFeNi, CoC, FeNi, and CFe in the weld zone. These hard phases are responsible for the increase in microhardness up to 321 HV0.1 in the weld zone, which is very close to the microhardness of the parent material. From the tensile strength tests, the ductile failure of welded specimens was confirmed due to the presence of dimples, inter-granular cleavage, and micro voids in the fracture zone. The maximum tensile residual stress along the weld line is 450 MPa, whereas the maximum compressive residual stress across the weld line is 500 MPa. On successful application of Response Surface methodology (RSM), laser power of 1448.5 W and welding speed of 600 mm/min i.e., line energy or heat input equal to 144 J/mm, were found to be optimum values for getting sound weld joint properties. The EBSD analysis reveals the elongated grain growth in the weld pool and very narrow grain growth in the heat-affected zone.

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A Critical Study of Input Process Parameter on Weld Geometry and Characterizations of Cobalt-Based Super Alloy L605 Sheets

Hari Prasad,

Kumar,

Anand

et al. 2024

Lecture Notes in Mechanical Engineering

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Effect of activating flux Cr2O3 on microstructure and properties of laser welded 5083 aluminum alloys

Cited by 9 publications

References 40 publications

Joining of C_f/SiC composites using AlCoCrFeNi_2.1 eutectic high‐entropy alloy filler by spark plasma sintering

Joining of C_f/SiC composites using AlCoCrFeNi_2.1 eutectic high‐entropy alloy filler by spark plasma sintering

Fiber Laser Welded Cobalt Super Alloy L605: Optimization of Weldability Characteristics

A Critical Study of Input Process Parameter on Weld Geometry and Characterizations of Cobalt-Based Super Alloy L605 Sheets

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Effect of activating flux Cr2O3 on microstructure and properties of laser welded 5083 aluminum alloys

Cited by 9 publications

References 40 publications

Joining of Cf/SiC composites using AlCoCrFeNi2.1 eutectic high‐entropy alloy filler by spark plasma sintering

Joining of Cf/SiC composites using AlCoCrFeNi2.1 eutectic high‐entropy alloy filler by spark plasma sintering

Fiber Laser Welded Cobalt Super Alloy L605: Optimization of Weldability Characteristics

A Critical Study of Input Process Parameter on Weld Geometry and Characterizations of Cobalt-Based Super Alloy L605 Sheets

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Product

Resources

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Joining of C_f/SiC composites using AlCoCrFeNi_2.1 eutectic high‐entropy alloy filler by spark plasma sintering

Joining of C_f/SiC composites using AlCoCrFeNi_2.1 eutectic high‐entropy alloy filler by spark plasma sintering