Spinodal hardened alloys are characterized by regular submicroscopic chemical composition fluctuations. These chemical fluctuations occur spontaneously at the aging temperature and their formation is called spinodal decomposition. In the case of Pfinodal, the copper, nickel (15%), and tin (8%) alloying elements are homogeneous throughout the manufacturing process prior to aging.
Mill processing requires a solution anneal and quench step to produce a homogeneous single-phase structure. This is followed by cold work and finally a low temperature aging step. The amount of cold work, aging temperature, and time all affect the strength and formability of the final Pfinodal product. AMETEK’s patented powder metallurgy process accomplishes this uniformity, thus ensuring optimum reproducible properties.
AMETEK 377 (C729) competes with beryllium-copper for many electrical applications where high strength and excellent formability without dimensional instability are required. AMETEK 388 (C72650) offers high conductivity and strength for connectors, sockets, bearings, and switches.
If you are interested in learning more about AMTEK 377 or 388 products, please download the datasheets using the links provided below, or contact Clad Metal Specialties for more information.