A High Performance Cu-Ni-Sn Spinodal Alloy - An Update

Significant developments have been made in the last 10 years for the spinodally-hardened Copper-Nickel-Tin alloy system. These developments include both process improvements to reduce segregation and improve consistency and the development of statically derived property specifications. Because of these developments, the AT110 (UNS C72900) grade of the alloy system has become a material of commerce and the material of choice in wear-critical applications, including those that require the performance of CuBe.  AMS specifications and MMPDS design allowables have been developed.  The testing summary, including support and basic property testing will be described along with the effects of geometry and microstructure.