| 초록 |
Titanium (Ti) scrap utilization as raw materials charge in the Ti industry has grown from 30% in 1970s to 50% currently and still increasing owing to the lower cost of production. The use of low cost, recycled Ti can enable its use in industries where price plays a key role. In addition it can play an important part in preserving the environment. The α+β Titanium alloys currently are under intensive research due their excellent blend of mechanical properties such strength, toughness and ductility. In this work, fabrication of low cost Ti-20Nb binary alloy has been done using Spark plasma sintering (SPS). Sintering was done for short time at 900oC and 40 MPa Pressure of Ti and Nb powder blend. Next, heat treatment alloy was done between 900-1100oC for various time durations. FE-SEM, EDS and XRD analysis was done to characterize the resultant alloy. The resultant microstructure contained dispersed β-phase grains in α-phase matrix with Nb particles completely dissolved. |
