First-Principles Investigation about the Plastic Property of Doping Ni in Ir Solid Solution System

Abstract

We mainly give research and application status of iridium and iridium alloy materials in this paper, then prospect development tendency and application of the iridium alloy in the future. This paper based on density functional theory of first-principles plane wave method, choose local density approximation (LDA) potential to calculate the different doped amount of Ni in Ir Solid Solution System, found the impact on plastic property, the calculation results reveal that Ir44Ni4 began to show the plastic performance, With the increaseing of the adding Ni atom later, plastic performance becomes more and more strong.