Mathematical simulation of defect formation in parts produced by diffusion bonding
A review of approaches to mathematical simulation of void closure during diffusion bonding is carried out. Kinetics of void closure are simulated for different parameters of technological process and quality of workpiece processing. Finite element simulation of void closure is carried out using the material superplasticity model. Fatigue plots are presented for void chains of radial and longitudinal orientation, which can occur in bond seams of a hollow blade.