@article{oai:niigata-u.repo.nii.ac.jp:00002933,
 author = {渡辺, 孝一 and 大川, 成剛 and 金谷, 貢 and 中野, 周二 and 宮川, 修 and 小林, 正義},
 issue = {2},
 journal = {歯科材料・器械, 歯科材料・器械},
 month = {Mar},
 note = {純チタンとチタン合金(Ti-6Al-4V)の鋳造性の違いを検討するため, 充満過程の異なる3種のキャビティに鋳込んで, X線透過法による欠陥検査と標識元素溶解法により湯流れを観察した.F型で充満するキャビティでは純チタンと合金で鋳造性, 内部欠陥ともほとんど差は認められなかった。しかしながら、W型とB型で充満する場合, 合金の鋳造性が少し劣ることが確認された.メッシュ形態では合金による鋳造体で, 標識元素として使用された白金がほとんど検出されなかったことから, 合金の熱的性質が異なることが推定された.また合金のメッシュ鋳造体先端の元素分析から, 溶湯に凝固粒子を含んで流れていることが確認された.以上の結果, 合金の鋳造性の劣る原因は, 溶湯に凝固粒子が分散したことで, 粘性係数の増加したためであると結論された., To investigate the difference in castability between pure titanium and Ti-6Al-4V alloy, three types of casting that differed in mold filling type were constructed. Casting defects were checked by X-ray transparencies and flow behavior was observed using the molten tracer element method. There was no difference between the two metals for F type fillings. However, for thin cavities(W type fillings)and mesh cavities(B type fillings), the castability of the titanium alloy was slightly lower than that of pure titanium. The thermal properties of the titanium alloy are presumed to be considerably different from those of pure titanium since platinum, one of the tracers, was hardly detected during mesh casting of the alloy. Microanalysis of the top of the mesh casting revealed that the molten alloy flow included many particles. In conclusion, the reason for the poorer castability of the titanium alloy is that the viscosity of the molten alloy increased significantly because of the solidification particles included in its flow.},
 pages = {137--145},
 title = {純チタンとTi-6Al-4V合金の湯流れの相違点},
 volume = {15},
 year = {1996}
}