earticle

영어

The purpose of this study was to investigate the change of microstructures and mechanical properties of pure titanium casting specimens as a function of mold temperatures. The pure titanium castings were fabricated using the centrifugal vacuum casting method with different mold temperatures of 200~500℃ . The resulting castings were characterized by optical microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy and vicker,s hardness tester. In case of the mold temperatures over 400℃, the porosity, surface crack and large grain size were observed in resulting castings. In this work, The most suitable mold temperature in casting of pure titanium was 300℃.