Abstract
In this paper a novel nickel-base, alumina forming alloy, Nikrothal PM 58 is introduced. Similar to the previously developed, ferritic, iron-base alloy Kanthal APMT, the alloy bases its corrosion resistance on the formation of an adherent surface alumina layer. They both have high creep strength, due to a dispersion strengthened microstructure from the powder metallurgical processing route. This unique combination of properties enables application temperatures ranging from 1472 F (800°C) to 2372 F (1300°C) and new possibilities to design high temperature components like mesh belts, furnace rollers and muffles. Mechanical and corrosion properties for Nikrothal PM 58 at 2012 F (1100°C) and 2192 F (1200°C) are presented and compared with other commercial high temperature alloys.
