一、前言 世界航空科学发展史雄辩地证明,航空技术的发展与航空材料科学的发展有着密切的关系。欲达到最先进的飞机性能,一是从设计出发,从气动力学、结构力学上挖掘潜力,一是从材料上挖掘潜力。而后者所能发挥的潜力往往是十分显著的,例如若把发动机涡轮前温度 I. Preface The history of world aviation science has eloquently proved that the development of aviation technology is closely related to the development of aviation materials science. To achieve the most advanced aircraft performance, one is to start with design and tap the potential from aerodynamics and structural mechanics. The first is to tap potential from the material. The latter potential is often very significant, for example, if the engine before the turbine temperature