Fe-33Ni-4Co-1.2Nb超低膨胀合金研究

Study of super-invar alloy Fe-33Ni-4Co-1.2Nb

研究了一种雷达天线罩连接环用Fe-33Ni-4Co-1.2Nb低膨胀合金,该合金具有极低的膨胀系数(α20～100℃<0.9×10-6/℃),同时,该合金也具有良好的机械力学性能和加工性能,试验表明,该合金较好地解决了天线罩与基体的连接问题,是制作天线罩连接环和其它需要低膨胀封接的良好材料。

This paper studies a new low-expansion alloy Fe-33Ni-4Co-1.2Nb for radome link purpose.The alloy have very low expansion coefficient（α20-100℃〈0.9×10^-6/℃）.At the same time,the alloy have good mechanical properties and processing performance.The results indicated that the alloy have fairly resolved the joining problems about radome and body.Alloy Fe-33Ni-4Co-1.2Nb is a fine joining materials to manufacture radome link and sealing.