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发明公开
CN101050497A 一种含稀土高温固溶强化耐热钛合金 失效 - 权利终止

一种含稀土高温固溶强化耐热钛合金
摘要：
本发明提供了一种含稀土高温固溶强化耐热钛合金，其特征在于该合金由以下重量百分数的原料组成：Al 4.5％－7.5％、Sn 1％－5％、Zr 2％－8％、W 0.25％－0.8％、Si 0.2％－0.5％、Y 0.05％－0.5％，其余为Ti和不可避免的杂质。本发明具有良好的综合性能，尤其是抗蠕变性能和热稳定性优异，抗蠕变性能和热稳定性形成良好的匹配，可以在600℃条件下长期使用；同时该合金具有良好的可焊性，可采用真空电子束或氩弧焊方法对合金板材进行焊接加工，焊接强度系数大于90％。
摘要（英）：

This invention provides a high-temperature solid solution strengthened heat-resistant Ti alloy containing rare earth. The Ti alloy is composed of: Al 4.5-7.5 wt.%, Sn 1-5 wt.%, Zr 2-8 wt.%, W 0.25-0.8 wt.%, Si 0.2-0.5 wt.%, Y 0.05-0.5 wt.%, and Ti as well as impurities as balance. The Ti alloy has high creep resistance and high thermal stability, and can be used at 600 deg.C for a long time. Besides, the Ti alloy has excellent weldability, thus can be processed by vacuum electron beam welding or Ar arc welding with a welding strength coefficient higher than 90%.

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