Interdendritic shrinkage porosity in a Stellite 6 investment casting. Shrinkage porosity can act as a stress concentration and can promote fracture initiation.

Fatigue fracture of a 6 in diameter rock drill bit. Opposing fracture initiation sites indicate failure as a a result of repeated reversed bending.

Wet fluorescent magnetic particle indications of heat checking in a gray cast iron brake drum. We routinely use non-destructive inspection methods to evaluate components.