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发明公开
CN105821248A 一种含有共析型β稳定元素的高强钛合金 无效 - 撤回

一种含有共析型β稳定元素的高强钛合金
摘要：
本发明提供了一种含有共析型β稳定元素的高强钛合金，由以下质量百分比的成分组成：Al 4.5％～5.5％，Mo 3％～5％，Cr 2％～4％，Co 1.5％～3％，Fe 0.6％～1.5％，余量为Ti和不可避免的杂质。本发明钛合金含有少量同晶型β稳定元素，以共析型β元素Cr、Co和Fe作为主要β稳定元素，该高强钛合金的热加工性及淬透性优良，强度可在900MPa～1600MPa较宽范围内调整，具备良好的强塑性匹配，其成本相对同级别高强结构钛合金较低，满足多种应用领域对高强钛合金性能的要求。
摘要（英）：

The invention provides a high-strength titanium alloy containing eutectoid type beta stable elements. The high-strength titanium alloy is composed of, by mass percent, 4.5% to 5.5% of Al, 3% to 5% of Mo, 2% to 4% of Cr, 1.5% to 3% of Co, 0.6% to 1.5% of Fe and the balance Ti and inevitable impurities. The titanium alloy contains few isomorphous beta stable elements, the eutectoid type beta stable elements of Cr, Co and Fe serve as main beta stable elements, hot workability and hardenability of the high-strength titanium alloy are excellent, the strength can be adjusted within the wide range of 900 MPa to 1600 MPa, the good strength and plasticity matching is achieved, compared with cost of a high-strength-structure titanium alloy of the same level, the cost of the high-strength titanium alloy is lower, and the requirement of multiple application fields for the performance of the high-strength titanium alloy is met.

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