Improved stochastic dissimilar diffusion bonding model with experimental validation

Abstract. Diffusion bonding is a solid-state welding operation that has seen wide spread use in the aerospace industry, especially combination with superplastic forming. It combines two relatively flat, clean surfaces at high temperature to create near flawless weld over large surface area. Modelling of diffusion been challenging due part because larger variations voids formed from mating surfaces. This paper attempts compensate for inadequacy by implementing stochastic model based theoretical interacting The uses statistical version Pilling’s roughness initial conditions estimates possibilities formed. results are compared experimental three different alloys variety process along presenting an investigation mechanics future improvements.