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KMID : 0896219940140011027
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Journal of Daegu Health College
1994 Volume.14 No. 1 p.1027 ~ p.1041
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A study on the Microstructural Alteration of Ti alloy for the Dental casting Materials
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Kwak Dong-Ju
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Abstract
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Effects of hydrogenation-dehydrogenation treatment on pure Ti and Ti-0.15pd alloy were studied. Pure Ti and Ti-0.15Pd alloy were conducted solution treatment at 950℃, respectively and then done hydrogenation dehydrogenation treatment. Then, the relationship between hydrogen treatment condition and X-ray diffraction patterns, i.e. the microstructure factor is examined. Ti-hydride precipitates mainly at α - β interface and also in α phase. Microstructure Ti alloy shows finer than that of pure titanium in hydrogenation and dehydrogenation treatments. Ti-0.15Pd alloy carried out solution treatment at 950℃, the transformation of α martensite was occured. Hydrogen absorption of Ti-0.15Pd alloy was higher than that of pure titanium. Dehydrogenation temperature in titanium alloy occured approximately at 400-562℃. Hydrogen tretment was used as a temporary alloying element modifying the microstructure of tianium in order to enhance fatigue behavior for partial denture.
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