Age precipitation-containing rare earth metal-nickel alloy

Year	Description
1998	Invention patented by Yuji Tanibuchi, Kazuhiko Yamamoto, and Chikara Okada on December 2nd, 1998. Abstract: An age precipitation-containing rare earth metal-nickel alloy of AB.sub.5 type having a composition represented by a formula (1) wherein R stands for a rare earth element including Y or mixtures thereof, M stands for Co, Al, Mn, Fe, Cu, Zr, Ti, Mo, W, B, or mixtures thereof, x satisfies the relation of 0.05.ltoreq.x.ltoreq.0.5, and y satisfies the relation of -0.45.ltoreq.y.ltoreq.0.45, the alloy containing a precipitated phase having an average size of 0.1 to 20 .mu.m as measured along the longitudinal axis. A method of producing the alloy as defined above including the steps of subjecting a raw alloy material having a composition represented by the formula (1) to a solid solution treatment at a temperature of not less than 1000.degree. C., and ageing the alloy material subjected to said solution heat treatment at a temperature T (.degree. C.) of not less than 700.degree. C. and less than 1000.degree. C. for a time period t (hour) which satisfies the relation represented by the formula (2) thereby precipitating a precipitated phase having an average size of 0.1 to 20 .mu.m as measured along the longitudinal axis.
Source: selected by the editor from original sources.

Invention: Age precipitation-containing rare earth metal-nickel alloy