Abstract: The diffusion welding experiment on, TB2 titanium alloy was carried out on Gleeble-1500 simulation tester. The microstructures of the welding joints in the experiment were analyzed through SEM and fractal dimensions of fracture surface were calculated. In addition, the shearing strengths of the welding joints under various experimental conditions were obtained through shearing experiment and some investigations on the strength of the joint were carried out. The experiments show that the welding temperature, time and pressure have great influence on the shearing strength and fractal dimension of the diffusion welding joints. The shearing strength of the diffusion bonding joint and fractal dimension have positive relation. The highest shearing strength of the joint (890MPa) and the highest fractal dimension arrive at the same time when the welding process parameters are 900℃, 30min and 5MPa.
Diffusion welding of TB2 titanium alloy and fractal dimension
Abstract:
The diffusion welding experiment on TB 2 titanium alloy was carried out on Gleeble-1500 simulation tester. The microstructures of the welding joints in the experiment were analyzed through SEM and fractal dimensions of fracture surface were calculated. In addition, the shearing strengths of the welding joints under various experimental conditions were obtained through shearing experiment and some investigations on the strength of the joint were carried out. The experiments show that the welding temperature, time and pressure have great influence on the shearing strength and fractal dimension of the diffusion welding joints. The shearing strength of the diffusion bonding joint and fractal dimension have positive relation. The highest shearing strength of the joint (890 MPa) and the highest fractal dimension arrive at the same time when the welding process parameters are 900 ℃, 30 min and 5 MPa.