Castability of Ti-6Al-7Nb alloy for dental casting.
Castability of Ti-6Al-7Nb alloy for dental casting.
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牙科铸造用 Ti-6Al-7Nb 合金的铸造性能。
DOI：
10.11480/jmds.460103
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发表时间：
1999
影响因子：
--
通讯作者：
T. Yoneyama
中科院分区：
文献类型：
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作者：
T. J. Wang;E. Kobayashi;H. Doi;T. Yoneyama
用网状和板状试件研究了Ti-6Al-7Nb合金、Cp钛合金和Co-Cr合金的铸造性能。采用压力式铸造机和商业造型材料进行铸造。网状型试件的铸造性通过铸造节段的数量(铸造性指数)来评价，板式试件的铸造性通过试件的面积(铸造率)来评价。使用数字成像技术处理的X射线图像来识别铸件的孔洞。试件的铸造率随着试件厚度的增加而增加。结果表明，Ti-6Al-7Nb合金的铸造性能指数和铸造速度略低于Cp钛合金，但高于Co-Cr合金，这是因为Ti-6Al-7Nb合金的铸造气孔比Cp钛合金少，比Co-Cr合金小，有利于提高铸造性能的可靠性。
Castability of Ti-6Al-7Nb alloy, CP Ti, and Co-Cr alloy was examined for mesh type and plate type specimens. The casting was carried out with a pressure type casting machine and commercial molding material. The castability of the mesh type specimen was evaluated in terms of the number of cast segments (castability index), and that of the plate type was evaluated by the area of the specimen (casting rate). X-ray images processed by a digital imaging technique were used to identify the casting porosity. The casting rate of the specimens increased with increasing thickness of the specimens. It was concluded that the castability index and the casting rate of Ti-6Al-7Nb alloy was slightly lower than that of CP Ti, and higher than that of Co-Cr alloy, were as Ti-6Al-7Nb alloy showed fewer casting porosities than CP Ti and smaller ones than Co-Cr alloy, which was advantageous for increasing the reliability of the casting properties.