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KMID : 0362120100320040315
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Journal of Technologic Dentistry
2010 Volume.32 No. 4 p.315 ~ p.323
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Microstructures and Mechanical Properties of Pure Titanium Casting Specimens with Mold Temperatures
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Cha Sung-Soo
Nam Sang-Yong
Song Young-Ju
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Abstract
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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℃.
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KEYWORD
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Titanium, Centrifugal vacuum casting, Mold temperature, Microstructure, Mechanical property
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