“一代材料,一代飞机”。航空工业的发展历程与材料科学的进步密切相关。上世纪80年代,由于航空材料的进步,发达国家的飞机起落架最高规定寿命已达到5000飞行小时,而我国起落架的使用寿命仅有200～500小时。起落架成为制约我国先进飞机设计和安全使用的“瓶颈”。北京航空材料研究所的科研人员赵振业,经过近5年的研究,解决了起落架疲劳强度不够的难题,利用 “A generation of materials, a generation of aircraft ”. The development of the aviation industry is closely related to the progress of materials science. 80s of last century, due to advances in aviation materials, developed countries, the maximum life of the aircraft landing gear has reached 5,000 flying hours, while the life of our landing gear only 200 to 500 hours. Landing gear has become the “bottleneck” restricting the design and safe use of advanced aircraft in our country. Beijing Institute of Aeronautical Materials Zhao Zhenye researchers, after nearly five years of research, to solve the problem of inadequate landing gear fatigue strength, the use of