Melt spinning Ni-based superalloys

Abstract

AbstractThe data relating to the production of tapes by chill-block melt spinning of a Ni-based crystalline superalloy (API) are compared with those presented by previous workers for amorphous and low-melting-point crystalline alloys. Comparisons based on fitting the data to established equations shed light upon the physical significance of the parameter vp, the melt-pool viscosity. The effect of changing the alloy composition upon the form of the melt-spun product is also investigated; it is thought that the solidification and surface-tension characteristics of the alloy as well as the substrate material control the dimensions and thus the coherency of the tape produced.