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GH15合金是国内研制的一种高性能的铁镍基高温合金,用我国富有的总量约10%的钨钼铌元素对奥氏体进行复合强化,使合金在保持高塑性和优良的抗氧化性的同时,大大地提高了热强性,同时也具有良好的冲压、焊接和热加工等工艺性能。其综合性能水平和苏美广泛应用的镍基合金ЭN868和 HastelloyX 相当。热强性则稍高于上述合金,适于制造在900～950℃以下工作的航空发动机燃烧室零部件(合金的综合介绍见本刊1980年第6期)。我公司生产的一种原型发动机火焰筒安装边,是采用 GH30镍基合金制造的,其性能一直比较稳定。为了提高该机的性能,设计部门
GH15 alloy is a high-performance iron-nickel-base superalloy developed in China. The austenite is strengthened with about 10% of the total amount of tungsten, molybdenum and niobium rich in China, so that the alloy is excellent in maintaining high plasticity and excellent oxidation resistance At the same time, it greatly improves the thermal strength, but also has good stamping, welding and thermal processing and other process performance. Its comprehensive performance level and Sume widely used nickel-based alloys ЭN868 and HastelloyX quite. Thermal strength is slightly higher than the above-mentioned alloy, suitable for the manufacture of aircraft engine combustion chamber below 900 ~ 950 ℃ parts (see the synthesis of alloy see article 6, 1980). My company produced a prototype engine flame tube mounting side, is the use of GH30 nickel-based alloy, its performance has been relatively stable. In order to improve the performance of the aircraft, the design department