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由于钛具有无与伦比的综合性能,它在现代航空空间系统中应用很广。钛在室温和中等温度(800℃左右)下拥有高的比强度(强度—密度之比)和非常好的腐蚀抗力。因此人们把钛用作现代汽轮发动机的叶片、压气机盘和叶片、飞机骨架结构等。在上述应用中,不是需要高强度,就是使用温度超过了铝合金的极限。在诸如 F-14、F-15和B-1等现代先进飞机中,用钛量已超过飞机骨架重量的20%。尽管钛有明显的优点,它在航空空间中的应用尚未达到予期的水平,其根本原因是钛的成本高。造成成本高的根源在原料准备方面。锻造合金材料的成本一般平均是比在1974年1月时高了46%。加之原料成本亦高,钛就难于进行锻造和机械加工了。其结果
Due to its unrivaled combination of capabilities, Titanium is widely used in modern aerospace and space systems. Titanium has high specific strength (strength-density ratio) and very good corrosion resistance at room temperature and moderate temperature (around 800 ° C). Therefore, titanium is used as a blade for modern steam turbine engines, compressor disks and blades, aircraft skeleton structures, and the like. In the above applications, not the need for high strength, is the use of temperature exceeds the limit of aluminum. In modern advanced aircraft such as F-14, F-15 and B-1, the amount of titanium used has exceeded 20% of the aircraft’s skeleton weight. Although titanium has obvious advantages, its application in aeronautical space has not yet reached the expected level, the fundamental reason is the high cost of titanium. The root causes of high costs in the preparation of raw materials. The cost of forging alloy materials is generally on average 46% higher than in January 1974. Coupled with the high cost of raw materials, titanium is difficult to forging and machining. the result