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发明公开
CN104451213A 一种高动态承载性能、低成本钛合金的制备方法 有权

一种高动态承载性能、低成本钛合金的制备方法
摘要：
本发明涉及一种高动态承载性能、低成本钛合金的制备方法，包括如下步骤：（1）合金目标成分范围：合金元素重量百分比组成为铝2.5%～7.0%，钒2.0%～5.5%，铁≤2.5%，氧0.1%～0.3%，其余为钛；（2）按所述的合金目标成分进行配料；（3）熔炼及变形加工；（4）成品热处理及表面清理。本发明通过合理的加工及热处理制度，确保了钛合金具备较高的动态承载能力，冲击吸收能不小于300J/cm3，当平均动态流变应力不小于1500MPa时最大均匀塑性应变不小于0.17，当平均动态流变应力不小于1400MPa时最大均匀塑性应变不小于0.20，当平均动态流变应力不小于1300MPa时最大均匀塑性应变不小于0.22。
摘要（英）：

The invention relates to a preparation method for a titanium alloy with a high dynamic bearing performance and a low cost. The preparation method comprises the following steps: (1) setting the ranges of the target ingredients of the alloy, wherein from composition, the alloy comprises the following elements in percentage by weight: 2.5-7.0% of aluminium, 2.0-5.5% of vanadium, not greater than 2.5% of iron, 0.1-0.3% of oxygen and the balance of titanium; (2) proportioning according to the target ingredients of the alloy; (3) smelting, and deforming and processing; (4) carrying out heat treatment and surface cleaning on the finished product. According to the preparation method disclosed by the invention, the high dynamic bearing capacity of the titanium alloy is guaranteed through reasonable processing and heat treatment regimes; the impact absorption energy is not less than 300J/cm<3>; when the average dynamic flow stress is not less than 1500MPa, the maximum uniform plastic strain is not less than 0.17; when the average dynamic flow stress is not less than 1400MPa, the maximum uniform plastic strain is not less than 0.20; when the average dynamic flow stress is not less than 1300MPa, the maximum uniform plastic strain is not less than 0.22.

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