Effect of non-planar geometry on diffusion kinetics during brazing repair process

摘要

A new finite difference numerical model is used to study the influence of non-planar (cylindrical and spherical) solid-liquid interface geometry on the kinetics of isothermal solidification during diffusion brazing or transient liquid phase repair process. Notwithstanding that limited work had been reported on non-planar systems, this study shows that non-planarity of the solid-liquid interface can have significant effects on the kinetics of solid-liquid phase transformation during the repair process, which are crucial to the understanding and optimisation of the repair process in non-planar systems.