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为了提高飞行马赫数为4.5或更高的先进高速导弹弹体的性能,需要研制在高温下仍能保持其性能的轻质材料。对导弹系统而言,如果其工作温度超过了钛合金的承温能力,弹体的设计者就只好用合金或镍合金作为主要结构材料。只有一些内装件,如燃料箱、致动装置及电子系统等,限定使用高效蜂窝或夹芯结构部件。因此,当导弹的飞行包线扩展到使其表面温度超过594℃的工作环境时,会使导弹的质量大大增加。因此,成功地研制出新型轻质耐高温结构材料,对减轻高速导弹的质量、提高其性能具有显著效果。
In order to improve the performance of advanced high speed missile projectiles at Mach-numbers of 4.5 or higher, lightweight materials that maintain their properties at elevated temperatures need to be developed. For missile systems, if the operating temperature exceeds the temperature capability of the titanium alloy, the projectile’s designer has to use the alloy or nickel alloy as the main structural material. Only a few of the internals, such as fuel tanks, actuators and electronic systems, etc., limit the use of highly efficient cellular or sandwich structural components. Therefore, when the flight envelope of a missile is extended to a working environment whose surface temperature exceeds 594 ° C, the quality of the missile will greatly increase. Therefore, successfully developed a new lightweight high temperature structural materials, to reduce the high-speed missile quality, improve its performance has a significant effect.