Particle-associated misorientation distribution in a nickel-base superalloy

An approach was developed to quantify the relationship between the location of carbide particles and grain boundaries during the annealing of a typical nickel-base superalloy, Waspaloy. The average grain size increased during supersolvus heat treatment at 1100 °C for 1 h despite an absence of carbide coarsening and changes in the global texture. It was determined that the spatial distribution of carbides which developed during annealing was correlated to the grain-boundary misorientation distribution.