Mechanical and Fatigue Properties of Ti-6Al-4V and TiB/Ti-6Al-4V Prepared by Spark Plasma Sintering

Titanium alloy parts for aerospace seek to meet strong demand for low costs.  Powder metallurgy is expected to be low-cost processing technology of titanium alloy.  An innovative powder densification technology known as SPS has been developed in recent years.  The SPS process is a synthesis and processing technique which makes it possible to at low sintering temperature and in a short sintering duration.  This study focuses on the mechanical and fatigue properties of Ti-6Al-4V and TiB/Ti-6Al-4V composites (TMC) prepared by spark plasma sintering (SPS) in vacuum.  The microstructure, mechanical properties and fretting fatigue strength of the sintered Ti-6Al-4V and TMC were investigated.