Effects of HIP Treatment on the Microstructure and Properties of Cr35-Si65 Target

Abstract

Hot Isostatic Pressing (HIP) can be used for upgrading castings, densifying pre-sintered components, consolidating powders, and interfacial bonding. Hot pressing is a good method for fabricating on high melting materials with better mechanical properties. Commercial as-hp treated Cr35-Si65 targets are used throughout this study. The aim of this paper is to discuss the methods and to find a suitable HIP treatment for the as-hp treated Cr35-Si65 target. Meanwhile, we also to evaluate the effects of HIP treatment on the microstructure and properties of Cr35-Si65 target. The experiment results show that HIP treatment at 1100°C under 175 MPa for 2 hours of Cr35-Si65 target is the most suitable condition. It can reduce the open pore porosity by 20% and close pore porosity by 30%. The density could be increased to 3.64×10⁻³ kg/m³.