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涡轮材料与工艺的发展目前,推重比10一级发动机涡轮均采用第三代单晶叶片材料,这种材料本身耐高温能力已达1050-1100℃,加上采用先进隔热涂层提供的隔热效果,其材料能承受的温度将达更高水平。 涡轮材料近期的发展方向是定向共晶合金、超单晶合金、机械合金化高温合金,远期发展方向是人工纤维增强高温合金、定向再结晶氧化物弥散强化合金以及新的能承受高温的材料,如金属间化合物及复合材料,碳-碳复合
Turbine materials and technology development At present, the thrust-weight ratio of 10 first-class engine turbines are used third-generation single crystal blade material, the material itself has reached 1050-1100 ℃ high temperature resistance, coupled with the use of advanced insulation coating provided by the interval Thermal effect, the material can withstand temperatures will reach a higher level. Recent developments in turbine materials are oriented eutectic alloys, super-single crystal alloys, and mechanical alloying superalloys. The long-term development directions are artificial fiber-reinforced high temperature alloys, oriented recrystallized oxide dispersion strengthened alloys, and new materials capable of withstanding high temperatures , Such as intermetallic compounds and composites, carbon-carbon composites