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发明公开
CN101104898A 一种高热强性、高热稳定性的高温钛合金 有权

一种高热强性、高热稳定性的高温钛合金
摘要：
本发明是一种新型高热强性、高热稳定性的高温钛合金，该合金同时加入Nb、Ta、Mo三种共晶型合金元素，通过这三种元素间的适当搭配，获得了比较高的热强性、热稳定性和抗氧化性。合金的成分范围(按重量百分比)是：Al: 5.0％～6.3％；Sn:3.0％～5.0％；Zr:2.5％～7.0％；Mo:0.2％～1.5％；Si:0.20％～0.55％；Nb:0.2％～1.0％；Ta:0.2％～3.0％；C:0.01％～0.09％，其余为钛和不可避免的杂质元素。该合金是飞机发动机高温部件如轮盘、鼓筒及鼓筒轴、叶片等的理想备选材料。
摘要（英）：

The invention provides a novel high-temperature Ti alloy with high heat resistance and high heat stability. The alloy contains eutectic Nb, Ta and Mo elements. Based on the appropriate proportion of these three elements, the alloy is superior in high resistance and stability to heat and good antioxidant effect. The alloy contains (by weight) Al 5.0-6.3 percent, Sn 3.0-5.0 percent, Zr 2.5-7.0 percent, Mo 0.2-1.5 percent, Si 0.20-0.55 percent, Nb 0.2-1.0 percent, Ta 0.2-3.0 percent, C 0.01-0.09 percent, and Ti and other inevitable impurities in balance. The alloy is an ideal alternative material for high-temperature parts of aircraft engine, such as wheel disk, drum barrel, barrel shaft and blade.

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