Preparation of superalloys for microstructural examination is not exceptionally difficult. The procedures are similar to those used to prepare stainless steels. Because they are facecentered cubic “austenitic” alloys with exceptionally good toughness, machinability is poorer than for steels and the age hardened alloys, especially the cast alloys, can be more difficult to section than most steels when they have a very high ‘ content. FCC metals readily deform and work harden, consequently aggressive sectioning methods (e.g., power-hacksawing or band sawing) will introduce considerable damage which can be very difficult to remove in the subsequent preparation steps. If these procedures must be used, it is advisable to re-section the material with the correct abrasive cutoff wheel (consumable type) with abundant cooling.