Mechanical properties of a β-type titanium alloy cast using a calcia mold for biomedical applications
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概要
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A calcia mold, which is stable at high temperatures for dental precision casting of β-type titanium alloys such as Ti–29mass%Nb–13mass%Ta–4.6mass%Zr alloy (TNTZ) with high melting point, has been developed. The applicability of the calcia mold to casting TNTZ was evaluated with focusing on the mechanical properties of the casting in this study. The molten TNTZ was cast into the calcia mold of which dimensional accuracy was controlled by adding pure zirconium particles. The tensile and fatigue properties of TNTZ cast into the calcia mold were examined with comparing those of TNTZ cast into the magnesia mold, which is the conventional one for casting titanium alloys. The tensile properties of TNTZ cast into the calcia and the magnesia molds are not markedly different. The fatigue strength of TNTZ cast into the calcia mold in the low- and high-cycle fatigue life regions is slightly higher than that of TNTZ cast into the magnesia mold. Therefore, the calcia mold is expected to be applicable to the dental precision casting of TNTZ.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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