Nickel-base alloy castings are widely used in corrosive-media and high-temperature applications. This article begins with a discussion on the compositions of corrosion-resistant nickel-base casting alloys and heat-resistant nickel-base casting alloys. It describes the effects of aluminum and titanium on the structure and properties of nickel-base alloys. The article provides information on the melting, foundry, and pouring practices for nickel-base alloys. It describes the welding and heat treatment of the nickel-base casting alloys. The article concludes with information on the numerous applications of cast heat-resistant nickel-base alloys.
This article focuses on the specimen preparation procedures of austenitic manganese steels: sectioning, mounting, and grinding. It provides information on macroexamination and microexamination of a fracture surface, the microstructure and special features of austenitic manganese steels, and the alloying elements used.