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我国在大飞机制造技术上与西方发达国家仍存在较大差距,重大瓶颈问题就是发动机的推力严重不足。为提高发动机推力,就需要发动机的涡轮叶片具有更高的承温能力。因此,国外大推力航空发动机全都采用单晶高温合金叶片。而在我国,由于单晶高温合金叶片制造技术的落后,大推力航空发动机只能采用定向柱晶叶片,从而导致发动机的动力、寿命与可靠性严重不足。显然,单晶高温合金叶片制造技术的突破将成为我国大飞机制造发展的关键。2007年,国内的航空航天技术也进入了新的发展阶段,国家宣布大飞机立项,迫切需要高温合金专业的研究人员。2009年6月,中国科学院金属研究所研究员周亦胄在中国科学院“百人计划”项目的支持下开始组建单晶高温合金制造技术实验室,瞄
There is still a big gap between China and the developed western countries in the manufacturing technology of large aircraft. The major bottleneck problem is that the thrust of the engine is seriously underdeveloped. In order to improve the engine thrust, the turbine blades of the engine need to have higher temperature bearing capacity. Therefore, all foreign high thrust aeroengines all use single crystal superalloy blade. However, in China, due to the backward manufacturing technology of single-crystal superalloy blades, the large-thrust aeroengine can only use the directional columnar blade, which leads to serious shortage of engine power, life expectancy and reliability. Obviously, single crystal superalloy blade manufacturing technology breakthrough will become the key to the development of China’s large aircraft manufacturing. In 2007, the domestic aerospace technology has also entered a new stage of development. The state announced the establishment of a large aircraft and urgently needed the superalloys professional researchers. In June 2009, Zhou Yijun, researcher at the Institute of Metal Research, Chinese Academy of Sciences, started to build a single crystal superalloy manufacturing technology laboratory with the support of the “Hundred Talents Program” of Chinese Academy of Sciences