复杂结构钛合金机翼的等温锻造试验研究（英文）

发布时间：2018-05-04 19:17

  本文选题：钛合金 + 复杂结构机翼　； 参考：《稀有金属材料与工程》2017年11期

【摘要】：Ti-6Al-4V合金是应用于航空和汽车工业领域的关键结构件,但是它硬度高,难加工,价格昂贵,且大尺寸毛坯时材料利用率很低,采用传统加工方法很难满足现代制造的需求。针对Ti-6Al-4V合金机翼,采用铅模拟实验优化了合理的锻坯形状,并引入了一种闭式等温锻造工艺,研究了等温锻造Ti-6Al-4V合金机翼的成形能力、机械性能和工艺参数等性能。结果表明:与传统加工的钛合金机翼相比,等温锻造机翼显著的改善了零件的机械性能,材料利用率从13%提高到50%;在950℃的等温锻造温度下,Ti-6Al-4V基体内片状α相逐渐转变为β相,而当锻造温度为900℃时,这种相变效果呈减弱趋势。
[Abstract]:Ti-6Al-4V alloy is a key structural part used in aviation and automobile industry, but it has high hardness, difficult to process, high price, and low material utilization ratio when large size blank, so it is difficult to meet the needs of modern manufacturing by using traditional processing methods. For the wing of Ti-6Al-4V alloy, the reasonable shape of forging blank was optimized by lead simulation experiment, and a closed isothermal forging process was introduced. The formability, mechanical properties and technological parameters of the wing of isothermal forging Ti-6Al-4V alloy were studied. The results show that compared with the traditional titanium alloy wing, the mechanical properties of the parts are significantly improved by isothermal forging, the material utilization ratio is increased from 13% to 50%, and the lamellar 伪 phase of Ti-6Al-4V base is gradually transformed to 尾 phase at 950 鈩，

本文编号：1844310